I think of the S1 and QB as 700x43 bikes. I think a good 650B conversion is a 700x28 bike. 700x43 should have a nominal radius of 344mm. If the OP goes to Hetres, then he'll drop his already lowish BB by a full centimeter (334mm radius). Maybe I'm hairsplitting.
On Thursday, February 20, 2014 6:41:47 PM UTC-8, iamkeith wrote: > > Regarding Mike and Bills comments: > > I might be missing something, but I kind of think of the QB/SO as > precisely that: A skinny 700c bike. So in theory, the bottom bracket > should stay in roughly the same place if you go to a fat 650b, right? > Also, if you look at the Riv geometry charts, I think the bottom bracket is > shown with quite a bit less drop than their other 700c models anyway. (I'd > better go confirm that, now that I've said it) > > There must be something I'm not seeing though... > > > On Thursday, February 20, 2014 7:32:34 PM UTC-7, Bill Lindsay wrote: > >> I think it would be a mistake. For the same reason Mike points out. The >> ONLY Rivendells that are a good 650B conversion candidate are 700xskinny >> models. >> >>> >>> -- You received this message because you are subscribed to the Google Groups "RBW Owners Bunch" group. To unsubscribe from this group and stop receiving emails from it, send an email to rbw-owners-bunch+unsubscr...@googlegroups.com. To post to this group, send email to rbw-owners-bunch@googlegroups.com. Visit this group at http://groups.google.com/group/rbw-owners-bunch. For more options, visit https://groups.google.com/groups/opt_out.
