--- In
TeamCatrike@ yahoogroups. com, Bicycle Minden <bicycle.minden@ ...> wrote:
>
> I bought an Expedition about a year ago and have most of the bugs worked out except for a persistant drivetrain problem. The chain jumps on the rear sprocket on several of the gears.
>
Charles, I just got back from a long ride and fiddle session..... Tightened the cable at the derailleur one click at a time rode a few miles, fiddled some more...... I believe it's a compounded problem; First, when they assembled these things they ran the cable around the steering tie rod which causes the cable to kink and move at the slightest turn - I corrected that and ran it into the front (between fabric layers) of the seat and straight back, readjusted the cable and all was well
for about 30 miles....Then it began the chattering again and I began fiddling with the tension. I almost have it but I suspect there is a deeper problem; Last time I had to fix that sort of problem, on a DF, it turned out that the derailleur when aligned at some cogs was just a tiny tweak out of parallel with the cluster gears and there was just enough lateral play in the idler (not the tensioner) to cause some slop. Fixed it by upgrading that idler. I would first check that.
This could end up being a similar problem. As to the Sram chain...So far I am not particularly impressed.
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