Shimano CASSETTE SPROCKET, CS-HG800-11, 11-34T, 11-SPEED, 11-13-15-17-19-21-23-25-27-30-34T
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5 largest cogs on alloy and composite spiders
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Light weight and high performance
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Aluminum lockring
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Nickel plated finish
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The 11-34 cassette (120615-07) is compatible with 10 and 11 speed freehub bodies (use 1.85mm spacer for 11 speed road)
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Other sizes are compatible only with 11 speed road hubs