Looks like I've got some reading/learning to do in terms of bottom brackets. "All riv's take a 100mm with the Sugino XD-2 crank" is what rivbike says on their $40 cartridge bb page. Then looking at Phil Wood bb's on the net there are too many options....
On Monday, January 21, 2013 12:26:07 PM UTC-8, Jay in Tel Aviv wrote: > > A square taper BB is $20. Not a big deal. > > On Jan 21, 10:21 pm, William <tapebu...@gmail.com> wrote: > > The geometry is not all that hard to figure out. A few mm of length > change > > will change your clearance by a few mm. A few degrees of extra lean > before > > you scrape. Pedal scrapes during a deep lean can be incredibly > dangerous. > > > > In my opinion, it is much more important to have the right length for > > pedalling than it is to have the right length for max turning clearance. > I > > ride 172.5mm on all my bikes and when I ride my wife's Betty areound the > > block, the 165mm arms on there feel like a midget bike to me. Alot of > the > > fixie crowd run 165's to promote spinning, but on a geared bike, my > > instinct tells me that 165s would be a mistake. Narrow width platform > > pedals, like the grip kings, could make more of a difference than > crankarm > > length, if you want to experiment more affordably. > > > > There's a semi-famous Greg Lemond quote about pedal clearance. He said > "if > > you think you need to pedal through a corner, you weren't going fast > enough > > into the turn". That's from a purely racer perspective. > > > > > > > > > > > > > > > > On Monday, January 21, 2013 11:33:47 AM UTC-8, Dave wrote: > > > > > Hey hey, > > > Question about crank length and possible change. I'm riding a 59 > bleriot > > > protovelo that I bought used with a 175mm shimano 105 cranks on it. > The > > > pedal strike I get is kind of avoidable,but still present frequently. > > > I've tried the mks stream pedals that it came with, along with the > gr-9 > > > platform pedals. With toe clips, they strike the ground if moving > the > > > bike without my feet in them. Any hard turns are problematic if you > need > > > to pedal through. > > > > > How much difference do you think moving to 165mm sugino xd2 cranks > would > > > provide? I'm not sure of the Q factor on the shimano cranks, or how > new > > > cranks would work with my bottom bracket (not entirely sure what's in > > > there)....so not sure if any of these questions can be answered. > -- 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/-/xCcugFEsgwwJ. To post to this group, send email to rbw-owners-bunch@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.
