My buddy Doug bought a complete bike A.H.H. off the floor at Riv HQ. His rear cassette had two problem gears that bugged him to distraction. I rode behind him on an S24O and it was obviously not right. He'd shift perfectly into the 3rd cog, and as soon as he put some real pressure on the thing, it would pop out. Only on two cogs. I had an identically spaced and sized cassette on my tandem which I dont ride often, so I put that on his bike. It's been perfect ever since. The bad cassette was the cheapish SRAM level. The one I loaned him is the HG-90 level.
My recommendation is to get your hands on another cassette, any other cassette, and confirm that your experience changes. If it does, then figure out what to do about it. Your pictures look like it's the black metal shimano cassette which is not Japanese and is not the best material, in my experience. A hanger misalignment or pulley float should not consistently be symptomatic only in the middle of the cassette or only on particular cogs. On Oct 29, 4:38 pm, newenglandbike <matthiasbe...@gmail.com> wrote: > You might also check the alignment of the RD. Park has a tool > called the DAG for measuring alignment of the hanger (any decent bike > shop should have it). Very often you'll find that the hanger is > out of alignment, if only slightly, even on new bikes. Aligning it > not only helps with shifting problems, but you'll notice that the > drive-train is suddenly *real* quiet :) -- 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.
