Thanks for the great info. I have some 16mm Velox I put in there. Feels like very thick and tough tape. At the time I was thinking that 16mm might be too narrow, but after reading your info, I think it is fine. Any wider and it would go up onto the bead set too much.
On Thursday, July 12, 2012 9:42:48 PM UTC-4, Savvas wrote: > Hi, > > You simply have single wall Velocity rims (as opposed to double-wall or > 'hollow') rims. These are not peculiar to 650B rims - Velocity (and most > other rim makers) also make them in 700C and many other sizes. On a > recessed spoke nipple rim (as the double wall are) you need the tape to > prevent the tube from blowing itself into the rim's hollow interior and > bursting. > > You can get away with 2-3 windings of electrical tape for this but I > prefer tape with some body to it - cotton or maybe that stiff plastic > stuff. I have seen plastic pallet or box binding tape used quite > successfully. The main issues are: > - ensuring the tape is the right width - wide enough to cover all the > holes without shifting and narrow enough to avoid climbing up on to the > bead set ledge. > - ensuring there are no sharp edges on either rim or tape that might cause > punctures. > > For single wall rims with exposed nipple heads the main issues are: > - ensuring that overlong spokes do not stand up clear of the nipple heads > (remove the spoke, scree the nipples fully on and trim and file the spoke > length as appropriate if they are) > - ensuring that you use a nice spoke tape that will mold around the nipple > head and adequately protect the tube from chafing. Again, a few windings of > electrical tape will work in a pinch although I don't regard this as ideal > myself. In my somewhat limited experience (not a pro, but I have a shed > full of wheels) I have found cotton tape (Pedros, Zefal etc) works pretty > well. Make sure you get the right width. I have found the mtb width works > best for most single wall rims. but measure and check. > > Sam. > > On Thursday, July 12, 2012 2:56:03 PM UTC+9:30, lungimsam wrote: >> >> As some of you may remember, I started a thread ISO a used Rivendell. >> Well, after some time, and some kind offers (thank you all) from people >> here and at the Bleriot Owner's Group, I got a used Bleriot. >> >> Being new to Rivs and 650b wheels, I have a couple wheel questions. I >> hope you all can clue me in to the scene. >> >> I have Deore hubs with Velocity Rims. Width measures about 3/4 inch. >> "Velocity Twin Hollow 32 Hole" printed on the label. >> >> 1. The Velocity rims on the bike have the heads of the spokes anchored on >> the inside of the rims and can contact the tube of the tire. Not recessed, >> like on 700c rims. >> Is there any special rim tape I should use for this? I have never seen >> this as my 700c bike rims have the recessed spokes. So I was wondering. >> >> 2. Does anyone here use tire liners with their 650b tires? I am used to >> using small 700c tires that need protection, and I don't know how the >> heavier 650b tires fare in reference to punctures. Let me know what you all >> do. >> >> 3. Will any 32-41mm 650b tires fit those rims of mine? I don't know how >> many variations of 650b rims are out there and what the standard width is. >> The label does not indicate which width tires the rim will take, though >> Rumpkins are on it now. But I'd like to throw on some Niftys, which are >> 32mm. >> >> Thanks for any info. >> >> > -- You received this message because you are subscribed to the Google Groups "RBW Owners Bunch" group. To view this discussion on the web visit https://groups.google.com/d/msg/rbw-owners-bunch/-/4fApOWBPhFAJ. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/rbw-owners-bunch?hl=en.
