[RBW] Re: FYI: VO 107mm BB and Sugino XD2 crank incompatibility
Well, the measurements are in. The spindle is in fact 107mm and appears to be symmetrical. So, I'm guessing the issue is with the machining of my particular XD2. This is okay as far as I'm concerned. I have no riding problems with the Q-factor or chainline I have with the 113mm BB. Yours, Thomas Lynn Skean On Jul 6, 7:05 am, Jim Thill - Hiawatha Cyclery thill@gmail.com wrote: This thread is kinda funny in light of another recent discussion re: external bearing triples, during which one commentator expressed reluctance to fight with various standards and incompatibilities of external BBs. Never used a VO BB, except the French ones, but I've used XD cranks hundreds of times with shimano, tange, truvativ, and phil BBs. Never a problem like this. I'd suggest trying a different bb. On Jul 6, 12:50 am, oldmangabe oldmang...@gmail.com wrote: I am putting my money on it being the crank not being machined properly. On the drive side, at the square taper interface, the cranks should be turned down a bit so that one can run a short BB spindle. This will allow the cranks to snug into the driveside bb cup without binding the crank to the cup, or to the bearing. I've seen maybe 3-4 Sugino cranksets, all of them being of the XD variety (Sugino's basic 110 and 130 bcd crank design sold to various importers) over the last couple of years not have this machining. It basically causes the crank to bottom out on the driveside cup much too soon, as the original poster has pointed out. If one uses a longer spindle BB, then it does not happen, but when you are trying to get a good chainline (singlespeed, multispeed) or a lower Q-factor, this can happen with an improperly machined crank. It sounds like you should contact Rivendell about getting a replacement crankset. Good luck. Gabe On Jul 4, 7:43 pm, Thomas Lynn Skean thomaslynnsk...@comcast.net wrote: Hi! I tried to mount a Sugino XD2 crank from RBW on a 107mm VO bottom bracket and couldn't make it work. Mounting the crank onto the spindle, before I had slid it on far enough to get the appropriate torque on the crank bolt, the inner portion of the crank arm interfered with the bottom bracket itself! At first when I was having trouble turning the cranks I thought... hmmm, did I ruin a bearing or something? But no, it was just that the crank arm was literally jammed up against the bottom bracket itself. Just plain weird. Anyway, I suspect both the VO bottom bracket and the XD2 crank I have are perfectly fine normal examples of their kind. And I suspect the VO BB is a fine product in general, as is the XD2 crank. They just didn't work together for me. The only other bottom bracket I had lying around was a 113mm Truvativ, which turns just fine for now. When it shows age, I may replace it with a larger VO. I wasn't really very close to the required torque on the crank when it came in contact with the bottom bracket. It isn't obvious that a 110mm VO bottom bracket would work. I suspect a 113mm would, though. Perhaps I should just get the 107mm from RBW. This would give me the intended chainline. However, I'm going to eyeball carefully my current set up. I haven't concerned myself with Q-factor up to this point; longer spindles on a bottom bracket don't bother me as long as the chainline is reasonable for how I ride. I need to give that more thought. I may even go with a 118mm BB if the chainline is okay. At that point, the crank arms might just slip right past the two-legged Pletscher kickstand when its deployed. That basically turns the kickstand into a work stand. (That and a couple of ceiling-mounted $3 bicycle hooks were the only stand I used to the build the bike up with in the first place.) Anyway... just in case anybody else tries the 107mm VO BB with an XD2 crank. I wouldn't expect it to work right out of the box. Yours, Thomas Lynn Skean -- You received this message because you are subscribed to the Google Groups RBW Owners Bunch group. To post to this group, send email to rbw-owners-bu...@googlegroups.com. To unsubscribe from this group, send email to rbw-owners-bunch+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/rbw-owners-bunch?hl=en.
[RBW] Re: FYI: VO 107mm BB and Sugino XD2 crank incompatibility
This thread is kinda funny in light of another recent discussion re: external bearing triples, during which one commentator expressed reluctance to fight with various standards and incompatibilities of external BBs. Never used a VO BB, except the French ones, but I've used XD cranks hundreds of times with shimano, tange, truvativ, and phil BBs. Never a problem like this. I'd suggest trying a different bb. On Jul 6, 12:50 am, oldmangabe oldmang...@gmail.com wrote: I am putting my money on it being the crank not being machined properly. On the drive side, at the square taper interface, the cranks should be turned down a bit so that one can run a short BB spindle. This will allow the cranks to snug into the driveside bb cup without binding the crank to the cup, or to the bearing. I've seen maybe 3-4 Sugino cranksets, all of them being of the XD variety (Sugino's basic 110 and 130 bcd crank design sold to various importers) over the last couple of years not have this machining. It basically causes the crank to bottom out on the driveside cup much too soon, as the original poster has pointed out. If one uses a longer spindle BB, then it does not happen, but when you are trying to get a good chainline (singlespeed, multispeed) or a lower Q-factor, this can happen with an improperly machined crank. It sounds like you should contact Rivendell about getting a replacement crankset. Good luck. Gabe On Jul 4, 7:43 pm, Thomas Lynn Skean thomaslynnsk...@comcast.net wrote: Hi! I tried to mount a Sugino XD2 crank from RBW on a 107mm VO bottom bracket and couldn't make it work. Mounting the crank onto the spindle, before I had slid it on far enough to get the appropriate torque on the crank bolt, the inner portion of the crank arm interfered with the bottom bracket itself! At first when I was having trouble turning the cranks I thought... hmmm, did I ruin a bearing or something? But no, it was just that the crank arm was literally jammed up against the bottom bracket itself. Just plain weird. Anyway, I suspect both the VO bottom bracket and the XD2 crank I have are perfectly fine normal examples of their kind. And I suspect the VO BB is a fine product in general, as is the XD2 crank. They just didn't work together for me. The only other bottom bracket I had lying around was a 113mm Truvativ, which turns just fine for now. When it shows age, I may replace it with a larger VO. I wasn't really very close to the required torque on the crank when it came in contact with the bottom bracket. It isn't obvious that a 110mm VO bottom bracket would work. I suspect a 113mm would, though. Perhaps I should just get the 107mm from RBW. This would give me the intended chainline. However, I'm going to eyeball carefully my current set up. I haven't concerned myself with Q-factor up to this point; longer spindles on a bottom bracket don't bother me as long as the chainline is reasonable for how I ride. I need to give that more thought. I may even go with a 118mm BB if the chainline is okay. At that point, the crank arms might just slip right past the two-legged Pletscher kickstand when its deployed. That basically turns the kickstand into a work stand. (That and a couple of ceiling-mounted $3 bicycle hooks were the only stand I used to the build the bike up with in the first place.) Anyway... just in case anybody else tries the 107mm VO BB with an XD2 crank. I wouldn't expect it to work right out of the box. Yours, Thomas Lynn Skean -- You received this message because you are subscribed to the Google Groups RBW Owners Bunch group. To post to this group, send email to rbw-owners-bu...@googlegroups.com. To unsubscribe from this group, send email to rbw-owners-bunch+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/rbw-owners-bunch?hl=en.
[RBW] Re: FYI: VO 107mm BB and Sugino XD2 crank incompatibility
That sounds kind of odd to me. I use a 107 BB with a Sugino and never had crank arm interference. Actually I've used three different Sugino triple cranks and one FSA square taper crank with the 107mm sized BB and no problems at all. I'll bet that bottom bracket or the crank arm is machined over sized slightly, making for a bad fit. A 107mm BB spindle ought to be a 107mm regardless of brand. On Jul 4, 7:43 pm, Thomas Lynn Skean thomaslynnsk...@comcast.net wrote: Hi! I tried to mount a Sugino XD2 crank from RBW on a 107mm VO bottom bracket and couldn't make it work. Mounting the crank onto the spindle, before I had slid it on far enough to get the appropriate torque on the crank bolt, the inner portion of the crank arm interfered with the bottom bracket itself! At first when I was having trouble turning the cranks I thought... hmmm, did I ruin a bearing or something? But no, it was just that the crank arm was literally jammed up against the bottom bracket itself. Just plain weird. Anyway, I suspect both the VO bottom bracket and the XD2 crank I have are perfectly fine normal examples of their kind. And I suspect the VO BB is a fine product in general, as is the XD2 crank. They just didn't work together for me. The only other bottom bracket I had lying around was a 113mm Truvativ, which turns just fine for now. When it shows age, I may replace it with a larger VO. I wasn't really very close to the required torque on the crank when it came in contact with the bottom bracket. It isn't obvious that a 110mm VO bottom bracket would work. I suspect a 113mm would, though. Perhaps I should just get the 107mm from RBW. This would give me the intended chainline. However, I'm going to eyeball carefully my current set up. I haven't concerned myself with Q-factor up to this point; longer spindles on a bottom bracket don't bother me as long as the chainline is reasonable for how I ride. I need to give that more thought. I may even go with a 118mm BB if the chainline is okay. At that point, the crank arms might just slip right past the two-legged Pletscher kickstand when its deployed. That basically turns the kickstand into a work stand. (That and a couple of ceiling-mounted $3 bicycle hooks were the only stand I used to the build the bike up with in the first place.) Anyway... just in case anybody else tries the 107mm VO BB with an XD2 crank. I wouldn't expect it to work right out of the box. Yours, Thomas Lynn Skean -- You received this message because you are subscribed to the Google Groups RBW Owners Bunch group. To post to this group, send email to rbw-owners-bu...@googlegroups.com. To unsubscribe from this group, send email to rbw-owners-bunch+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/rbw-owners-bunch?hl=en.
[RBW] Re: FYI: VO 107mm BB and Sugino XD2 crank incompatibility
Few questions on this one... Does the VO BB have an asymmetrical spindle? Or are you sure that the bb cartridge is correctly seated against the cup? Are you talking about the Grand Cru or the Threadless version? Have you measured the bb spindle to make sure it is as advertised? - Jim On Jul 4, 7:43 pm, Thomas Lynn Skean thomaslynnsk...@comcast.net wrote: Hi! I tried to mount a Sugino XD2 crank from RBW on a 107mm VO bottom bracket and couldn't make it work. Mounting the crank onto the spindle, before I had slid it on far enough to get the appropriate torque on the crank bolt, the inner portion of the crank arm interfered with the bottom bracket itself! At first when I was having trouble turning the cranks I thought... hmmm, did I ruin a bearing or something? But no, it was just that the crank arm was literally jammed up against the bottom bracket itself. Just plain weird. Anyway, I suspect both the VO bottom bracket and the XD2 crank I have are perfectly fine normal examples of their kind. And I suspect the VO BB is a fine product in general, as is the XD2 crank. They just didn't work together for me. The only other bottom bracket I had lying around was a 113mm Truvativ, which turns just fine for now. When it shows age, I may replace it with a larger VO. I wasn't really very close to the required torque on the crank when it came in contact with the bottom bracket. It isn't obvious that a 110mm VO bottom bracket would work. I suspect a 113mm would, though. Perhaps I should just get the 107mm from RBW. This would give me the intended chainline. However, I'm going to eyeball carefully my current set up. I haven't concerned myself with Q-factor up to this point; longer spindles on a bottom bracket don't bother me as long as the chainline is reasonable for how I ride. I need to give that more thought. I may even go with a 118mm BB if the chainline is okay. At that point, the crank arms might just slip right past the two-legged Pletscher kickstand when its deployed. That basically turns the kickstand into a work stand. (That and a couple of ceiling-mounted $3 bicycle hooks were the only stand I used to the build the bike up with in the first place.) Anyway... just in case anybody else tries the 107mm VO BB with an XD2 crank. I wouldn't expect it to work right out of the box. Yours, Thomas Lynn Skean -- You received this message because you are subscribed to the Google Groups RBW Owners Bunch group. To post to this group, send email to rbw-owners-bu...@googlegroups.com. To unsubscribe from this group, send email to rbw-owners-bunch+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/rbw-owners-bunch?hl=en.
[RBW] Re: FYI: VO 107mm BB and Sugino XD2 crank incompatibility
JIS tapers can and do vary from brand to brand. Some of the tapers fit in further than others. From my experience, they can vary as much as 4mm total, or 2mm each side. Couple of things. 1. Did you measure the actual length of the VO BB? 2. Did you try using a 2mm driveside spacer underneath the BB cup? 2. What's the chainline w/Truvative 113mm BB ? -- You received this message because you are subscribed to the Google Groups RBW Owners Bunch group. To post to this group, send email to rbw-owners-bu...@googlegroups.com. To unsubscribe from this group, send email to rbw-owners-bunch+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/rbw-owners-bunch?hl=en.
[RBW] Re: FYI: VO 107mm BB and Sugino XD2 crank incompatibility
Hm, i find that really odd as I run a VO *103mm* with an XD2 double to get good chainlines with my dingle cog. The crank is *right* up against the cup, but the machining around the taper hole on the crank does its job and there's no interference. Is this one of the newer XD2 with that machining? Is the crank new or used (i.e. is possible that the tapers on it are blown out?)? Is it a double or a triple? On Jul 4, 7:43 pm, Thomas Lynn Skean thomaslynnsk...@comcast.net wrote: Hi! I tried to mount a Sugino XD2 crank from RBW on a 107mm VO bottom bracket and couldn't make it work. Mounting the crank onto the spindle, before I had slid it on far enough to get the appropriate torque on the crank bolt, the inner portion of the crank arm interfered with the bottom bracket itself! At first when I was having trouble turning the cranks I thought... hmmm, did I ruin a bearing or something? But no, it was just that the crank arm was literally jammed up against the bottom bracket itself. Just plain weird. Anyway, I suspect both the VO bottom bracket and the XD2 crank I have are perfectly fine normal examples of their kind. And I suspect the VO BB is a fine product in general, as is the XD2 crank. They just didn't work together for me. The only other bottom bracket I had lying around was a 113mm Truvativ, which turns just fine for now. When it shows age, I may replace it with a larger VO. I wasn't really very close to the required torque on the crank when it came in contact with the bottom bracket. It isn't obvious that a 110mm VO bottom bracket would work. I suspect a 113mm would, though. Perhaps I should just get the 107mm from RBW. This would give me the intended chainline. However, I'm going to eyeball carefully my current set up. I haven't concerned myself with Q-factor up to this point; longer spindles on a bottom bracket don't bother me as long as the chainline is reasonable for how I ride. I need to give that more thought. I may even go with a 118mm BB if the chainline is okay. At that point, the crank arms might just slip right past the two-legged Pletscher kickstand when its deployed. That basically turns the kickstand into a work stand. (That and a couple of ceiling-mounted $3 bicycle hooks were the only stand I used to the build the bike up with in the first place.) Anyway... just in case anybody else tries the 107mm VO BB with an XD2 crank. I wouldn't expect it to work right out of the box. Yours, Thomas Lynn Skean -- You received this message because you are subscribed to the Google Groups RBW Owners Bunch group. To post to this group, send email to rbw-owners-bu...@googlegroups.com. To unsubscribe from this group, send email to rbw-owners-bunch+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/rbw-owners-bunch?hl=en.
[RBW] Re: FYI: VO 107mm BB and Sugino XD2 crank incompatibility
Hmmm well, the crankset was purchased new from RBW within the last year or so. It had been mounted once. I used a torque wrench and did not exceed the maximum torque on written on the crank arm bolts. If the tapers are blown out, it's amazingly easy to do. I'll find out over time I guess (when my pedals start moving funny or something). I don't know about any changes in machining on the XD2. Perhaps that's the explanation; mine is at least 6 months old, maybe as much as a year old. What's the difference between a triple and a double XD2? Isn't the XD2 QuickBeam sold by RBW just a triple with the outer chainring replaced by a chainguard? I've never seen an XD2 anywhere else; I guess I always assumed it was either some other model re-named for RBW's purposes or simply a specific variety of Sugino crank marketed through RBW. Didn't know there was a triple/double distinction. Yours, Thomas Lynn Skean On Jul 5, 1:34 pm, Jeremy Till jeremy.t...@gmail.com wrote: Hm, i find that really odd as I run a VO *103mm* with an XD2 double to get good chainlines with my dingle cog. The crank is *right* up against the cup, but the machining around the taper hole on the crank does its job and there's no interference. Is this one of the newer XD2 with that machining? Is the crank new or used (i.e. is possible that the tapers on it are blown out?)? Is it a double or a triple? On Jul 4, 7:43 pm, Thomas Lynn Skean thomaslynnsk...@comcast.net wrote: Hi! I tried to mount a Sugino XD2 crank from RBW on a 107mm VO bottom bracket and couldn't make it work. Mounting the crank onto the spindle, before I had slid it on far enough to get the appropriate torque on the crank bolt, the inner portion of the crank arm interfered with the bottom bracket itself! At first when I was having trouble turning the cranks I thought... hmmm, did I ruin a bearing or something? But no, it was just that the crank arm was literally jammed up against the bottom bracket itself. Just plain weird. Anyway, I suspect both the VO bottom bracket and the XD2 crank I have are perfectly fine normal examples of their kind. And I suspect the VO BB is a fine product in general, as is the XD2 crank. They just didn't work together for me. The only other bottom bracket I had lying around was a 113mm Truvativ, which turns just fine for now. When it shows age, I may replace it with a larger VO. I wasn't really very close to the required torque on the crank when it came in contact with the bottom bracket. It isn't obvious that a 110mm VO bottom bracket would work. I suspect a 113mm would, though. Perhaps I should just get the 107mm from RBW. This would give me the intended chainline. However, I'm going to eyeball carefully my current set up. I haven't concerned myself with Q-factor up to this point; longer spindles on a bottom bracket don't bother me as long as the chainline is reasonable for how I ride. I need to give that more thought. I may even go with a 118mm BB if the chainline is okay. At that point, the crank arms might just slip right past the two-legged Pletscher kickstand when its deployed. That basically turns the kickstand into a work stand. (That and a couple of ceiling-mounted $3 bicycle hooks were the only stand I used to the build the bike up with in the first place.) Anyway... just in case anybody else tries the 107mm VO BB with an XD2 crank. I wouldn't expect it to work right out of the box. Yours, Thomas Lynn Skean- Hide quoted text - - Show quoted text - -- You received this message because you are subscribed to the Google Groups RBW Owners Bunch group. To post to this group, send email to rbw-owners-bu...@googlegroups.com. To unsubscribe from this group, send email to rbw-owners-bunch+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/rbw-owners-bunch?hl=en.
[RBW] Re: FYI: VO 107mm BB and Sugino XD2 crank incompatibility
Don't know about symmetrical vs. asymmetrical. I can measure it when I get a chance. Wouldn't it be symmetrical unless otherwise indicated? Perhaps you're suggesting it's out of alignment somehow? As far as I know, the BB cartridge and the drive-side cup are one unit on this BB; it was the drive-side crank arm that interfered with the BB. It's the Grand Cru, not the threadless. No, I simply assumed it was a 107mm since that's what I ordered and that's what the package said. In light of some having used a VO 103mm BB with an XD2 crank, I'll measure it to see what size the spindle actually is. I note that the inner chainring was not in contact with the chainstay; so I'm guessing it was a 107mm minimum (as I have heard elsewhere that a 107mm BB XD2 combination can lead to a tight chainstay/chainring clearance). Yours, Thomas Lynn Skean On Jul 5, 12:00 pm, cyclofiend cyclofi...@earthlink.net wrote: Few questions on this one... Does the VO BB have an asymmetrical spindle? Or are you sure that the bb cartridge is correctly seated against the cup? Are you talking about the Grand Cru or the Threadless version? Have you measured the bb spindle to make sure it is as advertised? - Jim On Jul 4, 7:43 pm, Thomas Lynn Skean thomaslynnsk...@comcast.net wrote: Hi! I tried to mount a Sugino XD2 crank from RBW on a 107mm VO bottom bracket and couldn't make it work. Mounting the crank onto the spindle, before I had slid it on far enough to get the appropriate torque on the crank bolt, the inner portion of the crank arm interfered with the bottom bracket itself! At first when I was having trouble turning the cranks I thought... hmmm, did I ruin a bearing or something? But no, it was just that the crank arm was literally jammed up against the bottom bracket itself. Just plain weird. Anyway, I suspect both the VO bottom bracket and the XD2 crank I have are perfectly fine normal examples of their kind. And I suspect the VO BB is a fine product in general, as is the XD2 crank. They just didn't work together for me. The only other bottom bracket I had lying around was a 113mm Truvativ, which turns just fine for now. When it shows age, I may replace it with a larger VO. I wasn't really very close to the required torque on the crank when it came in contact with the bottom bracket. It isn't obvious that a 110mm VO bottom bracket would work. I suspect a 113mm would, though. Perhaps I should just get the 107mm from RBW. This would give me the intended chainline. However, I'm going to eyeball carefully my current set up. I haven't concerned myself with Q-factor up to this point; longer spindles on a bottom bracket don't bother me as long as the chainline is reasonable for how I ride. I need to give that more thought. I may even go with a 118mm BB if the chainline is okay. At that point, the crank arms might just slip right past the two-legged Pletscher kickstand when its deployed. That basically turns the kickstand into a work stand. (That and a couple of ceiling-mounted $3 bicycle hooks were the only stand I used to the build the bike up with in the first place.) Anyway... just in case anybody else tries the 107mm VO BB with an XD2 crank. I wouldn't expect it to work right out of the box. Yours, Thomas Lynn Skean- Hide quoted text - - Show quoted text - -- You received this message because you are subscribed to the Google Groups RBW Owners Bunch group. To post to this group, send email to rbw-owners-bu...@googlegroups.com. To unsubscribe from this group, send email to rbw-owners-bunch+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/rbw-owners-bunch?hl=en.
[RBW] Re: FYI: VO 107mm BB and Sugino XD2 crank incompatibility
Didn't measure it but will do so. Don't see how a spacer matters; a spacer wouldn't change the position of the spindle relative to the driveside face of the BB, would it? Don't know what the chainline is on the Truvativ 113mm BB; that's too tricky to measure for me to get it right. I can certainly believe there are variations. Perhaps I am suffering from those variations. Or perhaps I *do* have a flaky instance of one (or both! what are the odds!) of these items. Yours, Thomas Lynn Skean On Jul 5, 8:05 am, Garth garth...@gmail.com wrote: JIS tapers can and do vary from brand to brand. Some of the tapers fit in further than others. From my experience, they can vary as much as 4mm total, or 2mm each side. Couple of things. 1. Did you measure the actual length of the VO BB? 2. Did you try using a 2mm driveside spacer underneath the BB cup? 2. What's the chainline w/Truvative 113mm BB ? -- You received this message because you are subscribed to the Google Groups RBW Owners Bunch group. To post to this group, send email to rbw-owners-bu...@googlegroups.com. To unsubscribe from this group, send email to rbw-owners-bunch+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/rbw-owners-bunch?hl=en.
[RBW] Re: FYI: VO 107mm BB and Sugino XD2 crank incompatibility
I can see your point. Though the fact is that *mine* are incompatible, so I think the word is correctly used. I acknowledge that someone might interpret that as meaning they are known to be uniformly incompatible. But that's a reach without reading the thread, where I definitely speak only of mine. I haven't tried other samples of either. I can't say I intend to do so (just as expensive for me as it would be for anybody reading this). But if someone else is using a VO Grand Cru 107mm BB with an RBW- purchased XD2 triple crankset, I'd love to hear about it of course. Even better would be if someone were to purchase a VO Grand Cru 107mm BB and XD2 crankset tomorrow and make them work. Either situation would support the notion that one of my parts is not-quite-right. Yours, Thomas Lynn Skean On Jul 5, 12:04 am, Justin August justinaug...@gmail.com wrote: Did you check with VO and/or try other samples of either products? I think it's premature to call them incompatible after only one test case. On Jul 4, 10:43 pm, Thomas Lynn Skean thomaslynnsk...@comcast.net wrote: Hi! I tried to mount a Sugino XD2 crank from RBW on a 107mm VO bottom bracket and couldn't make it work. Mounting the crank onto the spindle, before I had slid it on far enough to get the appropriate torque on the crank bolt, the inner portion of the crank arm interfered with the bottom bracket itself! At first when I was having trouble turning the cranks I thought... hmmm, did I ruin a bearing or something? But no, it was just that the crank arm was literally jammed up against the bottom bracket itself. Just plain weird. Anyway, I suspect both the VO bottom bracket and the XD2 crank I have are perfectly fine normal examples of their kind. And I suspect the VO BB is a fine product in general, as is the XD2 crank. They just didn't work together for me. The only other bottom bracket I had lying around was a 113mm Truvativ, which turns just fine for now. When it shows age, I may replace it with a larger VO. I wasn't really very close to the required torque on the crank when it came in contact with the bottom bracket. It isn't obvious that a 110mm VO bottom bracket would work. I suspect a 113mm would, though. Perhaps I should just get the 107mm from RBW. This would give me the intended chainline. However, I'm going to eyeball carefully my current set up. I haven't concerned myself with Q-factor up to this point; longer spindles on a bottom bracket don't bother me as long as the chainline is reasonable for how I ride. I need to give that more thought. I may even go with a 118mm BB if the chainline is okay. At that point, the crank arms might just slip right past the two-legged Pletscher kickstand when its deployed. That basically turns the kickstand into a work stand. (That and a couple of ceiling-mounted $3 bicycle hooks were the only stand I used to the build the bike up with in the first place.) Anyway... just in case anybody else tries the 107mm VO BB with an XD2 crank. I wouldn't expect it to work right out of the box. Yours, Thomas Lynn Skean- Hide quoted text - - Show quoted text - -- You received this message because you are subscribed to the Google Groups RBW Owners Bunch group. To post to this group, send email to rbw-owners-bu...@googlegroups.com. To unsubscribe from this group, send email to rbw-owners-bunch+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/rbw-owners-bunch?hl=en.
Re: [RBW] Re: FYI: VO 107mm BB and Sugino XD2 crank incompatibility
on 7/5/10 9:25 PM, Thomas Lynn Skean at thomaslynnsk...@comcast.net wrote: Don't know about symmetrical vs. asymmetrical. I can measure it when I get a chance. Wouldn't it be symmetrical unless otherwise indicated? Perhaps you're suggesting it's out of alignment somehow? Some of the Shimano ctg bb's were asymmetrical - longer to the driveside. You can see it usually, but can confirm it with calipers. I didn't know if maybe the VO bb was spec'd that way, and it somehow got reversed. As far as I know, the BB cartridge and the drive-side cup are one unit on this BB; it was the drive-side crank arm that interfered with the BB. I'm pretty sure that those cartridges are press-fit into the cup on the driveside. It's possible that the cartridge didn't seat properly, or there's something wrong with the thickness of the cup, which would move everything towards the non-drive side. It's the Grand Cru, not the threadless. No, I simply assumed it was a 107mm since that's what I ordered and that's what the package said. In light of some having used a VO 103mm BB with an XD2 crank, I'll measure it to see what size the spindle actually is. I note that the inner chainring was not in contact with the chainstay; so I'm guessing it was a 107mm minimum (as I have heard elsewhere that a 107mm BB XD2 combination can lead to a tight chainstay/chainring clearance). With that kind of result, I'd definitely measure the spindle for starters. Wouldn't be the first time that a package was mismarked/mispacked. Best of luck! - J -- Jim Edgar cyclofi...@earthlink.net -- You received this message because you are subscribed to the Google Groups RBW Owners Bunch group. To post to this group, send email to rbw-owners-bu...@googlegroups.com. To unsubscribe from this group, send email to rbw-owners-bunch+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/rbw-owners-bunch?hl=en.
[RBW] Re: FYI: VO 107mm BB and Sugino XD2 crank incompatibility
I have similar experience with Thomas. I recently put a XD500 crankset on my wife's Trek 620. The crank was previously mounted on a Shimano UN54 107mm bottom bracket and worked fine. I tried 2 bottom brackets I had in my parts bin--a 107mm IRD XB-75 bottom bracket and a 113mm VO bottom bracket, on both occasions the inner side of the crankset rubbed the teeth on the bottom bracket cups. The XD500 crankset has been in service for probably 4 years now. On the VO BB, it wasn't even close. On the IRD, it was extremely close to being at maximum torque, so I simply reinstall it with just a hair of gap between the crank arm and the teeth. I did measure the VO BB to be of the right spindle length. Franklyn On Jul 5, 10:11 pm, CycloFiend cyclofi...@earthlink.net wrote: on 7/5/10 9:25 PM, Thomas Lynn Skean at thomaslynnsk...@comcast.net wrote: Don't know about symmetrical vs. asymmetrical. I can measure it when I get a chance. Wouldn't it be symmetrical unless otherwise indicated? Perhaps you're suggesting it's out of alignment somehow? Some of the Shimano ctg bb's were asymmetrical - longer to the driveside. You can see it usually, but can confirm it with calipers. I didn't know if maybe the VO bb was spec'd that way, and it somehow got reversed. As far as I know, the BB cartridge and the drive-side cup are one unit on this BB; it was the drive-side crank arm that interfered with the BB. I'm pretty sure that those cartridges are press-fit into the cup on the driveside. It's possible that the cartridge didn't seat properly, or there's something wrong with the thickness of the cup, which would move everything towards the non-drive side. It's the Grand Cru, not the threadless. No, I simply assumed it was a 107mm since that's what I ordered and that's what the package said. In light of some having used a VO 103mm BB with an XD2 crank, I'll measure it to see what size the spindle actually is. I note that the inner chainring was not in contact with the chainstay; so I'm guessing it was a 107mm minimum (as I have heard elsewhere that a 107mm BB XD2 combination can lead to a tight chainstay/chainring clearance). With that kind of result, I'd definitely measure the spindle for starters. Wouldn't be the first time that a package was mismarked/mispacked. Best of luck! - J -- Jim Edgar cyclofi...@earthlink.net -- You received this message because you are subscribed to the Google Groups RBW Owners Bunch group. To post to this group, send email to rbw-owners-bu...@googlegroups.com. To unsubscribe from this group, send email to rbw-owners-bunch+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/rbw-owners-bunch?hl=en.
[RBW] Re: FYI: VO 107mm BB and Sugino XD2 crank incompatibility
I am putting my money on it being the crank not being machined properly. On the drive side, at the square taper interface, the cranks should be turned down a bit so that one can run a short BB spindle. This will allow the cranks to snug into the driveside bb cup without binding the crank to the cup, or to the bearing. I've seen maybe 3-4 Sugino cranksets, all of them being of the XD variety (Sugino's basic 110 and 130 bcd crank design sold to various importers) over the last couple of years not have this machining. It basically causes the crank to bottom out on the driveside cup much too soon, as the original poster has pointed out. If one uses a longer spindle BB, then it does not happen, but when you are trying to get a good chainline (singlespeed, multispeed) or a lower Q-factor, this can happen with an improperly machined crank. It sounds like you should contact Rivendell about getting a replacement crankset. Good luck. Gabe On Jul 4, 7:43 pm, Thomas Lynn Skean thomaslynnsk...@comcast.net wrote: Hi! I tried to mount a Sugino XD2 crank from RBW on a 107mm VO bottom bracket and couldn't make it work. Mounting the crank onto the spindle, before I had slid it on far enough to get the appropriate torque on the crank bolt, the inner portion of the crank arm interfered with the bottom bracket itself! At first when I was having trouble turning the cranks I thought... hmmm, did I ruin a bearing or something? But no, it was just that the crank arm was literally jammed up against the bottom bracket itself. Just plain weird. Anyway, I suspect both the VO bottom bracket and the XD2 crank I have are perfectly fine normal examples of their kind. And I suspect the VO BB is a fine product in general, as is the XD2 crank. They just didn't work together for me. The only other bottom bracket I had lying around was a 113mm Truvativ, which turns just fine for now. When it shows age, I may replace it with a larger VO. I wasn't really very close to the required torque on the crank when it came in contact with the bottom bracket. It isn't obvious that a 110mm VO bottom bracket would work. I suspect a 113mm would, though. Perhaps I should just get the 107mm from RBW. This would give me the intended chainline. However, I'm going to eyeball carefully my current set up. I haven't concerned myself with Q-factor up to this point; longer spindles on a bottom bracket don't bother me as long as the chainline is reasonable for how I ride. I need to give that more thought. I may even go with a 118mm BB if the chainline is okay. At that point, the crank arms might just slip right past the two-legged Pletscher kickstand when its deployed. That basically turns the kickstand into a work stand. (That and a couple of ceiling-mounted $3 bicycle hooks were the only stand I used to the build the bike up with in the first place.) Anyway... just in case anybody else tries the 107mm VO BB with an XD2 crank. I wouldn't expect it to work right out of the box. Yours, Thomas Lynn Skean -- You received this message because you are subscribed to the Google Groups RBW Owners Bunch group. To post to this group, send email to rbw-owners-bu...@googlegroups.com. To unsubscribe from this group, send email to rbw-owners-bunch+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/rbw-owners-bunch?hl=en.
[RBW] Re: FYI: VO 107mm BB and Sugino XD2 crank incompatibility
Did you check with VO and/or try other samples of either products? I think it's premature to call them incompatible after only one test case. On Jul 4, 10:43 pm, Thomas Lynn Skean thomaslynnsk...@comcast.net wrote: Hi! I tried to mount a Sugino XD2 crank from RBW on a 107mm VO bottom bracket and couldn't make it work. Mounting the crank onto the spindle, before I had slid it on far enough to get the appropriate torque on the crank bolt, the inner portion of the crank arm interfered with the bottom bracket itself! At first when I was having trouble turning the cranks I thought... hmmm, did I ruin a bearing or something? But no, it was just that the crank arm was literally jammed up against the bottom bracket itself. Just plain weird. Anyway, I suspect both the VO bottom bracket and the XD2 crank I have are perfectly fine normal examples of their kind. And I suspect the VO BB is a fine product in general, as is the XD2 crank. They just didn't work together for me. The only other bottom bracket I had lying around was a 113mm Truvativ, which turns just fine for now. When it shows age, I may replace it with a larger VO. I wasn't really very close to the required torque on the crank when it came in contact with the bottom bracket. It isn't obvious that a 110mm VO bottom bracket would work. I suspect a 113mm would, though. Perhaps I should just get the 107mm from RBW. This would give me the intended chainline. However, I'm going to eyeball carefully my current set up. I haven't concerned myself with Q-factor up to this point; longer spindles on a bottom bracket don't bother me as long as the chainline is reasonable for how I ride. I need to give that more thought. I may even go with a 118mm BB if the chainline is okay. At that point, the crank arms might just slip right past the two-legged Pletscher kickstand when its deployed. That basically turns the kickstand into a work stand. (That and a couple of ceiling-mounted $3 bicycle hooks were the only stand I used to the build the bike up with in the first place.) Anyway... just in case anybody else tries the 107mm VO BB with an XD2 crank. I wouldn't expect it to work right out of the box. Yours, Thomas Lynn Skean -- You received this message because you are subscribed to the Google Groups RBW Owners Bunch group. To post to this group, send email to rbw-owners-bu...@googlegroups.com. To unsubscribe from this group, send email to rbw-owners-bunch+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/rbw-owners-bunch?hl=en.
