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SRAM Shifter Jammed

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SRAM Shifter Jammed

Old 04-23-11, 06:31 AM
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SRAM Shifter Jammed

I have SRAM Rival on my new Cross bike. The rear shifter seems to have jammed and won't let me shift up.

There was a lot of dirt in the shifter after last week's very muddy race, but I have flushed it out with a hose, and lubed the parts as best as I can.

Any advice on how these things work? I'd like to be able to fix it myself so if it happens on the road, I can deal with it.

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Old 04-23-11, 11:24 AM
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Since it's fairly new and was exposed to lots of mud and water, I'd assume it's just a question of being bound with silt or rust.

First double check that it is the shifter and not the cables or RD by drawing the wire away from the downtube like a bow string and seeing if the RD response smoothly. Then check the handlebar to frame housing loop by shifting up to low gear via the bowstring method and parking it there so to have slack in the cable. Slide the housing out of the shifter and frame stop and see if it slides freely along the bit of slack in the wire.

If you've isolated the problem to the shifter, try gently working the levers while keeping a bit of tension in the wire. You might also remove the cover and see what you can see. As a last resort disconnect the gear wire from the RD and remove the shifter from the bike, give it a long soak in hot soapy water agitating it from time to time. If that frees it, rinse well, with multiple rinses, shake dry, and flush first with alcohol to remove any water, then a spray lube to protects it's innards.

If a good wash and lube doesn't help, bring it to the local shop and see if they can save it.

BTW- if you have a friend with an ultrasonic cleaner, say a jeweler or dentist, these do wonders flushing dried mud and silt out of small mechanisms.
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