Lots of good recommendations here. To troubleshoot, I would follow these steps:
- Bike on stand, pedals backwards. If there is a stiff link, it will obviously hang in the pulleys. - Eyeball the chain from back/top - make sure there are no protruding pins. - With no chain tension, grasp rear sprocket set and wiggle. There should be no movement. Tighten lockring if movement. If lockring is tight, it may be that the freehub has loosened. Typically, this needs to be tightened into the hub itself when the axle is removed. - With the rear wheel removed. Shift rear derailleur through it's range. Put it into the highest tension setting (highest gear on most models) and see if it moves without touching, then apply a little pressure with your finger to the derailleur body to see if it moves. If so, increase tension at the shifter body with the thumbscrew. Also, pay attention to the movement of the cable as you shift up and down. There should be no hitches or glitches. Often on a new bike setup, the cable housing tips are not completely set, so there can be movement and shifting of the housing, which causes cable movement and ghost shifting. There should be only the hint of slack when at the lowest tension point - no drooping or sagging cable. - Check axle on rear wheel for excessive play. Adjust cones to eliminate or reduce. - With chain not attached, check front chainrings for "trueness" - i.e. lateral movement when you spin cranks. (Chainring bolts and improperly torqued crankarm bolts can be culprit here.) That ought to get 95% of the issues tracked down. Housing can definitely be a culprit on barend shifter setups, as there are a few places for slack to hide. And absolutely measure the chain - I've swapped chains around and then reused the one I was going to trash. Hope that helps. - Jim / cyclofiend.com -- 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.
