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Sram Force Drivetrain Help

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Sram Force Drivetrain Help

Old 06-04-13, 10:26 AM
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flats
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Sram Force Drivetrain Help

I'm building up a bike with 2013 Sram Force 10 speed, with a compact crankset and 11-23 cassette.
It's my first time doing a build. If I'm in the big ring, the chain tension seems right, and I can shift through the cassette. If I move to the small ring, the chain has tons of slack, and the rear mech is near-horizontal such that the chain rubs on itself as it passes through the jockey wheels. Any ideas on what the problem is? Did I install the rear mech incorrectly? Too much chain length? B-tension screw?

Thanks in advance. I'll post some photos tonight if people don't understand the problem.
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Old 06-04-13, 11:04 AM
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dsbrantjr
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It sure sounds like your chain is too long.
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Old 06-04-13, 02:09 PM
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shelbyfv
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Yes, go to Park Tool and size your chain.
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