On Mon, 2010-05-24 at 11:41 -0700, Jim Thill - Hiawatha Cyclery wrote: > IMO, you'd gain very little and make the bike potentially dangerous to > ride by doing this conversion. The Hilsen has ample tire and fender > clearance. Not sure you'd improve that in a meaningful way by going to > 650B, assuming you can even find a brake that works. > > The dangerous part relates to the lowered BB. Most of the time pedal > strike is harmless, but if you happen to pedal vigorously through a > corner, you may find yourself being propelled at high speed into the > pavement, more or less head-first. Riv's famously low BBs are about as > low as they should be with the stock wheel sizes. If you do a 650B > conversion that makes the already low BB an inch lower, you're playing > with fire.
Unless you go to shorter cranks. However, the brake reach requirement and the ground clearance challenge are why I suggested the OP do some measurements. I don't know for sure that it won't work. I recall, Ed Braley found some super long reach BMX brakes that he used in some of his 650B conversions. Those brakes are highly collectible, but who knows, the OP may have a stash house full of them, along with a really short crank. -- 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.
