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.
