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.
