Could be worn cogs or chain rings, but unlikely with 200 miles (unless using a worn out chain to begin with).
First, I'd check the chain (which OP noted as new)-- move the crank slowly (when up on a repair stand or in reverse) to see if you have a tight link or one that's bent. I had this problem late last year with a new chain. Too bad I didn't have my chain tool with me at the time. On Thursday, April 11, 2013 12:35:25 PM UTC-4, Joe Bernard wrote: > > I don't know how you managed it with only 200 miles on the transferred > parts, but it sounds like your new chain is dancing over worn cogs and/or > chainrings. > > On Thursday, April 11, 2013 9:22:26 AM UTC-7, Doug M wrote: > >> Submitted for your consideration: a crunchy drivetrain problem on my >> new Hilsen build. I’m experiencing some auto-shifting and cog skipping >> when going uphill, pedaling hard or pedaling out of the saddle. I’d >> appreciate the group’s suggestions for a solution. >> >> Frame: 65 AHH, Waterford, 135 spacing, 1 TT, new >> >> Crank: Sugino XD2 road double 48-34 >> >> BB: Shimano UN-54, 110 mm >> >> Shifters: Silvers on bar ends >> >> RD: Shimano LX, low normal >> >> Rims: Sun CR-18, 36 hole >> >> Rear hub: Shimano 105, 130 spacing, a 1.5 mm spacer added to each side >> >> Cassette: SRAM 8 speed, 11-32 >> >> Chain: SRAM 7-8 speed, new >> >> Components not indicated as new have maybe 200 mi. of use on a previous >> bike of mine. >> >> >> >> Me: 6’3”, PBH 92, 265 lbs. What I’ve tried: Grease on BB cable guide, >> tightening rear QR skewer more. No luck so far. >> > -- 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?hl=en-US. For more options, visit https://groups.google.com/groups/opt_out.
