Yesterday, for the very first time, or at least for the first time in such a long time that I can't remember the last time, I threw a chain on one of my Rivendell fixies: 48 t Pro 5 Vis ring, the 17 t cog on a 17/19 Dingle. Although I was going downhills, I wasn't going fast, so there was no real damage done, a few minor scratches on the chainstay.
I examined the chain tension carefully, of course, and notice clearly for the first time that the ring is very much out of round: at one point in its revolution the chain will be quite slack, at the point of highest tension is can be too tight, with no give at all. So this afternoon I undid all the little *&%#(^#% fiddly bolts to loosen it, hoping I could nudge it into a more regular position on the spider; nope, even with all the bolts loosened to the point where the ring was flopping around, the same slack point and the same tight point. I took the whole thing apart and will try re-orienting the ring on the spider -- ie, lining up different bolt holes on ring with different ones on spider, but this is very weird, and here (deep breath) are my questions: Can rings, and older Pro 5 Vis rings in particular, just be drilled or stamped or cut off center? Is there a magic, lazyman technique to find the best orientation of ring to spider without having to ploddingly try each hole in the ring with each hole in the spider? Thanks. -- 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, Nouvelle Mexique, Vereinigte Staaten ************************************************************************** ************** *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.
