[RBW] Re: 46-30 crank on an unloaded road bike

2017-01-04 Thread David Person
I run a 44-28 on my Hillborne with an 11-32 in the rear and like the combination very much. I found this article from Jan Heine very helpful, particularly his advice on selecting the Base, High and Low gears. https://janheine.wordpress.com/2012/11/03/how-to-choose-your-chainrings/ David On

Re: [RBW] Re: 46-30 crank on an unloaded road bike

2017-01-03 Thread Deacon Patrick
Ah. Thanks, Steve. I'm too much of a Fred to be a Fred on Zwift. Grin. With abandon, Patrick On Tuesday, January 3, 2017 at 4:31:44 PM UTC-7, Steve Palincsar wrote: > > > > On 01/03/2017 06:15 PM, Deacon Patrick wrote: > > I've no idea what Zwift is. > > http://zwift.com/ > > some kind of

Re: [RBW] Re: 46-30 crank on an unloaded road bike

2017-01-03 Thread Steve Palincsar
On 01/03/2017 06:15 PM, Deacon Patrick wrote: I've no idea what Zwift is. http://zwift.com/ some kind of trainer-cycling with an online component that one article spoke of as "gamification" -- You received this message because you are subscribed to the Google Groups "RBW Owners

[RBW] Re: 46-30 crank on an unloaded road bike

2017-01-03 Thread Deacon Patrick
I've no idea what Zwift is. But riding single speed helped me greatly expand my range per gear (duh). It increased my power and technique with low RPM high torque pedaling (climbing) and it increased my spinning ability on descents. Perhaps ride at least a ride a week in poser single speed

[RBW] Re: 46-30 crank on an unloaded road bike

2017-01-03 Thread John Hawrylak
Belopsky A 36 front 11 rear gives 87GI for a 700Cx28. You may want a higher top gear. However, the front shifting would be good, only a 10T difference, like 52 to 42. The Sugino XD2 Wide/Low 40T-26T double RBW offers (

Re: [RBW] Re: 46-30 crank on an unloaded road bike

2017-01-03 Thread Steve Palincsar
Yes, that's what I said. On 01/02/2017 11:04 PM, ted wrote: Steve writes: "... I had a 104" top gear on my 1972 P-15 Paramount as originally delivered. I found it way too high. I changed the freewheel (had no choice, really: the shop destroyed the Regina Oro when trying to remove it for

Re: [RBW] Re: 46-30 crank on an unloaded road bike

2017-01-03 Thread Steve Palincsar
I know one can readily replace a 1st position 12 with a 1st position 13 tooth sprocket - I've been doing it for the past 15 years - but I'm not 100% certain you can as easily replace an 11 with a 12. I've asked that question on the forums and have received equivocal answers; perhaps some can

[RBW] Re: 46-30 crank on an unloaded road bike

2017-01-03 Thread Belopsky
This is similar to my issue - I have 48/30 up front, with a 11-28 rear (11,12,13,14,15,17,19,21,24,28). I think I want to buy a 36 chainring but also not sure if this is the crank I will be running long term on this bike or if I should get a different compact double and save the 48/30 for my

[RBW] Re: 46-30 crank on an unloaded road bike

2017-01-02 Thread ted
Garth, I suppose, sure. Though really its the gear (ratio of chainring over cog) that you don't want, so you can blame it on either the cog or the ring. Are you configuring rings around a cog you don't want, or cogs around a ring you don't want? I suppose either point of view is equally valid.

[RBW] Re: 46-30 crank on an unloaded road bike

2017-01-02 Thread Garth
While I am not familiar with every type of casette, but are not the smallest/lock ring cogs individual and easily replaced with a 12 or whatever on most cassettes ? Ceratainly a bit more simple than trying to configure rings around a cog/cogs you do not want or need. I would rather have gears

Re: [RBW] Re: 46-30 crank on an unloaded road bike

2017-01-02 Thread ted
Steve writes: "... I had a 104" top gear on my 1972 P-15 Paramount as originally delivered. I found it way too high. I changed the freewheel (had no choice, really: the shop destroyed the Regina Oro when trying to remove it for the first service) to one with a 15T that brought the top gear

[RBW] Re: 46-30 crank on an unloaded road bike

2017-01-02 Thread ted
John, Thanks for pointing out that TA makes 41t chainrings. Im well aware of GPs writings re too big gears. One of my bikes currently has Silver 25 and 43 rings sandwiching a TA 33 on Sugino arms I got from RBW. Prior to that it was set up as a 26/40 with chain guard, and before that as a

Re: [RBW] Re: 46-30 crank on an unloaded road bike

2017-01-02 Thread Steve Palincsar
On 01/02/2017 06:37 PM, ted wrote: John wrote: "46-11 = 113GI, pretty high for all but pros". When I see the term "pro" there I think of somebody who makes a living racing a bicycle. I was never a pro, never even really competitive as a middle aged local cat 4 racer wana be, but I did find a

[RBW] Re: 46-30 crank on an unloaded road bike

2017-01-02 Thread Call Me Jay
Lots for me to ponder here. Thanks everyone. On Sunday, January 1, 2017 at 9:27:35 AM UTC-5, Call Me Jay wrote: > > It looks like 46-30 cranks are a favorable of RBW owners (I've reviewed > the group archive). I'm interested in getting the insight of folks that > are using them in moderately

[RBW] Re: 46-30 crank on an unloaded road bike

2017-01-02 Thread Call Me Jay
Thanks again for all of insight! On Sunday, January 1, 2017 at 9:27:35 AM UTC-5, Call Me Jay wrote: > > It looks like 46-30 cranks are a favorable of RBW owners (I've reviewed > the group archive). I'm interested in getting the insight of folks that > are using them in moderately hilly terrain

[RBW] Re: 46-30 crank on an unloaded road bike

2017-01-02 Thread John Hawrylak
Ted I used Jim Youngs Gear Calculator for the GI values for a 7000x32. http://yojimg.net/bike/web_tools/gearcalc.php You asked; (does anybody make 110BCD 41t chainrings?) Yes TA Specialties and RBW has 43T Silver and a 40T Sugino. GP has a good write up in the Silver ring section

[RBW] Re: 46-30 crank on an unloaded road bike

2017-01-02 Thread ted
Hey John, My tone was inappropriate, and I got way off the point right off the bat. My bad, I apologize. I agree that 98 to 100 inches for a top gear is reasonable advice. Many riders probably find a top gear like that ideal. However, as you note, YMMV. I think many riders would find a top

[RBW] Re: 46-30 crank on an unloaded road bike

2017-01-01 Thread John Hawrylak
Ted I am sorry, By 52-14 I meant a 52T large ring and 14T smallest cog. This gives a 98 to 100GI value for 27x1" to 27x1-1/4" (common in the 70's) and also for 700x25 to 700x32. the 2GI difference is insignificant. The 100GI top value is the same as Schwinn explained in the their 70's

[RBW] Re: 46-30 crank on an unloaded road bike

2017-01-01 Thread ted
John, I don't think there were ever any "... 52-14 days of 130BCD cranks". A nerdy quibble I know, but please bear with me ... I believe the venerable 52-14 high gear dates from early 144 bcd crank days when Campi ruled and the Japanese copied Campi, when a common racing chainring combination

[RBW] Re: 46-30 crank on an unloaded road bike

2017-01-01 Thread John Hawrylak
Jay I would get a crank to give 100GI with existing 11-30 for Large ring/small cog or change the cassette to get 100GI for large ring/small cog, for example Current Crank & Existing Cassette, 46-11 = 113GI, pretty high for all but pros Current Crank & New Cassette, 46-12 = 103GI,

[RBW] Re: 46-30 crank on an unloaded road bike

2017-01-01 Thread ted
"For me, a 50/34 left me riding cross-chained too often." If I had a 50/34 crank I think I would immediately swap the 34 for a 36. When I went from 53/42 to 53/39 it took a while to get used to the bigger jump with the with the 14 vs 11 tooth difference between rings. I doubt I could learn to

[RBW] Re: 46-30 crank on an unloaded road bike

2017-01-01 Thread 'Tim' via RBW Owners Bunch
I lived in CT for three years and rode my Homer all over the Northeast, doing 2 full brevet series and many thousand miles. My gearing is 52-42-30 with 12-30 cassette. I found the gearing to be fine for the hilly CT terrain and mountainous areas of VT,NH and MA. I used my 52x12 gear often on

[RBW] Re: 46-30 crank on an unloaded road bike

2017-01-01 Thread Benz, Sunnyvale, CA
On Sunday, January 1, 2017 at 9:31:18 AM UTC-8, lum gim fong wrote: > > If you're worried about club rides, they say that pedaling over 22 mph > is futile. Because of wind resistance. Better to tuck and coast down hill. > I believe your numbers are off. The cutoff point is easily twice that.

[RBW] Re: 46-30 crank on an unloaded road bike

2017-01-01 Thread lum gim fong
Yes they could very well be wrong. That info was just for going downhill. I didn't explain Goodnuf. Sounds like only 4 issues here: 1. Can he keep up on club ride with whatever crankset he's going to use? 2. If he can't keep up he's going to have to train to keep up. Is he willing to

[RBW] Re: 46-30 crank on an unloaded road bike

2017-01-01 Thread ted
"If you're worried about club rides, they say that pedaling over 22 mph is futile. Because of wind resistance. Better to tuck and coast down hill." Form my personal experience with racing oriented club rides "they" are wrong, at least in the context of fast club riding. Groups like that

[RBW] Re: 46-30 crank on an unloaded road bike

2017-01-01 Thread lum gim fong
If you can't push a 50-36 and keep up in club rides you're going to have to train in order to do it. If you're not the kind of person to train then: XD2 triple you can go anywhere. 26-36-46 13-30 in back or 13-32 ormore teeth. If you're worried about club rides, they say that pedaling over

[RBW] Re: 46-30 crank on an unloaded road bike

2017-01-01 Thread Bill M.
What about the 50/34 does not suit your needs? For me, a 50/34 left me riding cross-chained too often. I have since used 46/30, 44/28 and 42/26 combinations that let me run on the big ring in the middle of the cassette most of the time, with the small ring as a bail out when I have to climb

[RBW] Re: 46-30 crank on an unloaded road bike

2017-01-01 Thread ted
It may help to think about how what you have that matches what you are considering feels. A 46x11 high gear will be the same as the 50x12 that you probably currently have as a 2nd highest gear. Is that high enough for you? A 30x30 low gear would, of course, be one to one. Do you have a one to

[RBW] Re: 46-30 crank on an unloaded road bike

2017-01-01 Thread Garth
Favorable by some(like those who write about it), far from all, like those all who don't bother writing about it since their setup works just fine and give it no thought, whatever that happens to be :) Statistics and votes and counts could never account for the whole story . Worth it ?