I can't advise about the slipping FD except to conjecture that something is keeping the bolt from tightening as it should. But as to the rear, I expect that it is a matter of learning shifting finesse. I have only 7 on the rear, but they are separated by 9 sp spacers (because that is what I had) and the silver bes shifts them fine. The trick is not anticipate the Hyperglide feature: move the lever just that tiny bit that experience teaches you is required by the gap, and let the ramps, etc., do their work. That took me a while to learn.
Patrick Moore iPhone On Jul 2, 2012, at 5:46 PM, Eric Peterson <peterson.er...@gmail.com> wrote: > I installed the Silvers on my Velo Orange rando bike and have been very > unhappy with their performance. There are two basic problems. > > First, I experienced phantom shifting of the FD. The shifter cannot hold the > FD in place in the middle ring (on a Sugino triple). Instead, after a short > time, it will drop to the inner ring. This occurred over and over on my > recent 400K brevet and I was NOT happy, as I was always going up a hill at > the time. I am using a modern DA FD, so perhaps the spring tension is too > high for the shifter. But it is the FD that I have available. If there are > any specific models of older FDs that would alleviate this condition, please > send along this information, along with any suggestions for sources. > > The other problem is just as bad. The shifter will not shift a 9-speed > Shimano cassette very effectively. You think you have nailed it, then the > chain jumps one way or the other. It's like the micro-clicks simply cannot > position the chain close enough to the center of the cassette for some gears. > So there was a lot of chain hopping going on back there. After a while I just > stopped shifting sometimes and just stood on the pedals. > > Bottom line, I will remove these and go back to Shimano. 9-speed BES have > worked well for me in the past, but I did not want to route the cables along > the handlebar in order to avoid the front bag I am using, so I initially > tried DA 9-speed DT shifters, but the rear one felt a little loose, and lined > up funny with the left one (so I thought), but now I have little choice but > to go with one of these or the other. > > Another option would be to go back to a 7/8 speed cassette, perhaps the > Silvers work well with those. But there is still the FD problem.... > > Eric Peterson > Naperville, IL > > On Monday, July 2, 2012 10:24:10 AM UTC-5, Mike wrote: > So I've been using Silver shifters for a few years now and overall like them > a lot with one exception. When I mount them on the DT on my 63cm Hilsen or > 63cm randonneuring bike, the front shifter slips when standing on the pedals > during a hard effort such as going over rollers causing the FD cage to rub on > the chain. This was exceptionally annoying last week during the Cascade > 1200k. > > I've had the problem to a lesser degree when the shifters are mounted on the > BE. > > The shifter and cable are mounted correctly. This is an issue that has > persisted even when the shifters were installed by a knowledgeable mechanic. > And yes, the shifter is tightened down on the braze-on. > > I'm considering giving Shimano Dura Ace 9spd DT shifters a try. For folks > using them, any issues? I've looked for 8spd Dura Ace shifters, which I'd > prefer, but Shimano does not seem to be making them anymore. I may just go > with 9spd and run the rear shifter in friction mode as my current drivetrain > is 8spd. > > I'm thinking that this might just be an issue due to the size of my frame and > my weight--185lb. I'd be curious what others' experiences have been with the > Shimano shifters. > > Oh, and if anyone has a pair of Dura Ace 8spd shifters for sale, let me know. > > Thanks, > mike > > > -- > You received this message because you are subscribed to the Google Groups > "RBW Owners Bunch" group. > To view this discussion on the web visit > https://groups.google.com/d/msg/rbw-owners-bunch/-/IWSBORBOiJwJ. > To post to this group, send email to rbw-owners-bunch@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. -- 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-bunch@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.
