Hi Jim, Although the Silver shifter is half-ratchety and half-friction, there is something one can do to mitigate the "in between" situation you've described - overshift on the ratchet side and then pull back on the friction side. Remember that every time one shifts on the friction side, the "home position" of the shifter changes as the ratchet/toothed wheel is dragged along for the shift. This means that Silver shifters are not like index shifters with predefined positions for each indent.
On Wednesday, February 5, 2014 2:55:45 AM UTC-8, Jim Thill - Hiawatha Cyclery wrote: > > I'd stick with 7/8 sp cassettes. Here's why. Riv's Silver shifter isn't a > true friction shifter, but a ratchet. That means the shifter has a finite > number of stops rather than an infinite number of positions in true > friction. If you try to shift to a position between the ratchet clicks, the > shifter will be pulled by the derailleur spring to the next click rather > than staying between clicks where you put it! So if you shift to where the > derailleur moves the chain to the perfect position over the desired cog... > As soon as you take your hand off the shifter, the shifter relaxes into the > next ratchet click, and the perfect alignment is gone. We've found that > these shifters "work" with 9sp cassettes but that there are always a few > noisy gears where the ratchet clicks don't allow the derailleur to line up > perfectly with the cogs (made worse because 9sp cassettes have ramps for > easy shifting at the slightest hint on a movement of the chain). I believe > most people who detect this noise simply "trim" the shift until they chain > is riding on a different cog that more closely aligns with one of the > clicks. In practice, your 9 sp cassette has only 6 or 7 gears that will be > tolerably non-noisy. You could ride for years and not notice this, of > course, constantly attributing the noise to simply needing to trim the > shift, always landing on a cog adjacent to the cog that you really want to > be in. But in the repair stand, it's obvious when you try to shift through > the range one gear at a time. -- 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 [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/rbw-owners-bunch. For more options, visit https://groups.google.com/groups/opt_out.
