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Found this on Rivendale Bike works regarding the R90 barend 9sps: Use: They click but don’t index. Out of the package and not on a bike, they click about 18 times. In the span of shifting over a 9-sp cassette, they click about 13 times. This sounds trick or confusing, but it isn’t at all. Like a with a pure friction shifter, you move the lever til the ...


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It currently has a 7-speed Shimano Altus derailleur The RD-M310 is actually a 7/8 speed derailleur. Kind of between the bottom-line Shimano Tourney line, designated as 7 speed, and the Acera 8 speed (RD-M360). Still, just this morning I saw a Tourney on someone's 8 speed commuting bike (one chainring front, 11-34T 8 in the back). I can't think of any ...


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Just a guess. Cable may have become tangled in shifter without tension (solder piece pushed out of seat). It needs tension to operate correctly. Check the shifter end of the cable for proper seating.


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RS-RF3 has a gear selector that rotates, instead of one with chain that is pulled. The rotating part is visible in service manual, look for "fulcrum lever set" and "shift actuator". As stated in comment, the supposed benefit is that no part of the mechanism protrudes outside frame.


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The little piece is the pivot bushing for the lever shaft. Its' job is to prevent a metal on metal contact point. You can reposition it by loosening the cable clamp at the brake caliper, gently slide the little barrel out far enough to install the bushing. By pulling the cable back every thing should go back in place. It can be helpful to have a pair of ...



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