AFAIK, the reason is to get as small a Q as possible while allowing sufficient clearance for the stays and proper chainline. I think this was particularly popular in the old days for triples -- the right stuck out further to accommodate proper chain line. I could lose ~5 mm on my XD2 if I could get an assym 108 to replace the present 113 on the Fargo. (Q with the 113 is an acceptable, to me, 160.)
On Sat, Aug 3, 2013 at 4:12 PM, JL <subfas...@gmail.com> wrote: > I was giving my commuter bike CBO a quick check over and noticed that the > crankset sits asymetric to the frame. It has never bothered me but my > question is - aside from cranks that are made offset so an asymetrical BB > actually aligns them symetrically - what is the purpose of asymetrical > BBs? I imagine the argument that it allows the chainrings to clear the > chainstay, or chainline to be zeroed in and usually people dont notice > could be made. I have a hard time imagining a design that intends > someone's legs to pedal like that for long periods of time. Does anyone > know an historic or design origin for the asym bb? > > Jason > SF,CA > > -- > 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. > > > -- http://resumespecialties.com/index.html patrickmo...@resumespecialties.com http://www.linkedin.com/in/patrickmooreresumespec/ Albuquerque, NM -- 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.
