William, Go for it...there is one way to find out if it works well enough for you!
I believe the biggest jump I have run between two chain rings was 20 teeth. It was on a half-step + granny set up on an All-Rounder. 20-40-44. The 20 40 shift required some care but otherwise wasn't a problem. I loved the half-step part, but didn't like the large jump into and out of the granny; too much rear shifting required in addition to the "careful" front shift anytime a steepish hill was encountered. If I only did that shift occasionally I would have stuck with it, but on rolling hills I found it irritating. The best shifting double I used was on my cyclocross bike a 38-47 set up. It shifted wonderfully, almost without any care needed; no indexing...no problem, full of mud...no problem, pedaling hard...no problem ....but where is the skill in that? Let us know how it works out. Angus On Mar 5, 4:38 pm, William <tapebu...@gmail.com> wrote: > I'm running Ritchey/Sugino cranks on my Hillborne and another set > waiting for me to pay off my Bombadil. These are 94/58mm bolt circle > cranks. I love them and would but 5 more sets in 172.5 if I could. > They both came with 22/32/42 chainrings. I am running the Hilborne > right now as a wider range triple: 22/34/46. The cranks that are > going on to the Bombadil were last used as a double on a cyclocross > bike and worked great with a 30/44 with Campy ergo brifters. I'm > wondering what's the biggest jump on a double you've run. Kevens > dream Bomba has a 24/40, for 16t of jump. 34/50 is standard on > compact road cranks nowadays. I'm thinking of trying a 46/29 on these > Ritchey arms. I've never run TA or TA-style cranks that I think allow > even more flexibility. Has anyone ever run a 20+ tooth jump between > two chainrings? -- 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.
