On Thursday, March 9, 2017 at 6:54:07 AM UTC-5, Jon BALER wrote: > Anybody else have a problem with ird power ratchet shifters frequently > loosening up? My rear shifter needs to be tightened every about 1-2 times a > week (my commute is ~100 miles/week). It's easy enough to tighten while > riding, but there should be a way to avoid this. I'm talking about the > shifting lever moving on its own, not the bar clamp.
While I am not familiar with the IRD ones, I have ridden multilpe pairs of Suntour Thumbshifters since forever. My best "guess" from experience with these is silimlar to dt shifters in that what "holds" the shifter in place in a perfect amount of pressure from the bolt, allowing just the necessary free rotation while retaining just enough pressure to hold it in place. On the Suntours there is a metal washer under the bolt that allows that "just right" balance of pressure and movement. The IRD appears to not have any washer from looking at pictures just a plastic whatchmacallit that is common on dt shifters. My first guess is that it has worn down/compressed and now is not thick enough to maintain pressure. A very thin metal washer, as in razor thin, between the bolt and the plastic may add the necessary thickness to provide the needed pressure again. If not ....I would contact IRD for sure. -- 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 https://groups.google.com/group/rbw-owners-bunch. For more options, visit https://groups.google.com/d/optout.
