Very nice bike, and a nice deal, too. Theoretically, the center of the gap between your 2 chainrings should line up with the middle cog, or in the case of a 8 or 10 speed system, bisect the gap between the middle cogs. Your bb should be chosen to get that placement. After that, it's a matter of crank design: some cranks have much more arm flare and thus wider Q. In fact, arm flare dictates Q more than bb length, usually, unless you have gone way overboard in choosing your bb (eg, choosing a 123 mm spindle where you need a 108; I've done that!) but in that case you usually have problems adjusting front shifting (I did).
"Theoretically" because a few mm either way makes no practical difference. On Fri, Apr 20, 2018 at 7:52 AM, Tommy Patterson <tomwpatter...@gmail.com> wrote: > Hello everyone, > > I bought my first Rivendell used at a small shop in western NC a month > back and I love it! The price was too good to be true ($850!?!) and after a > few hundred in consumable parts (tires, drivetrain, bar tape) and setting > it up to my liking it is riding great. I understand why y'all love these > bikes to much. > > I have a general question to those that might know a thing or two about bb > length for rambouillets. The BB that is in there feels wide to me and I > have ample crank arm clearance. I have not pulled it out to measure, but I > am curious if a standard road width would fit this bike. I have 175 Sugino > cranks and could like to reduce my q-factor so I don't feel like I am > pedaling bowlegged. Any advice or experience would be helpful. > > Attached are a few photos of the day I bought the bike (with a genuine > smile), its current iteration, and the crank-arm clearance. I'm riding a > century on it tomorrow, wish me luck. > > Cheers, > Tommy > > -- > 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 https://groups.google.com/group/rbw-owners-bunch. > For more options, visit https://groups.google.com/d/optout. > -- Resumes, LinkedIn profiles, bios, and letters that get interviews. By-the-hour resume and LinkedIn coaching. Other professional writing services. http://www.resumespecialties.com/ www.linkedin.com/in/patrickmooreresumespec/ Patrick Moore Alburquerque, New Mexico, Etats Unis d'Amerique ************************************************************************** ************** *Auditis an me ludit amabilis insania?* -- 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 https://groups.google.com/group/rbw-owners-bunch. For more options, visit https://groups.google.com/d/optout.
