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Shimano SLX Dyna-Sys RD-M663 SGS 10-Speed Shadow Rear Derailleur

Item: 50-0088
$45.00
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Shimano's wide gear range Dyna-Sys technology and low-profile Shadow design are now available in the hard-working SLX rear derailleur. Like its XT cousin, it's lighter, smoother-shifting and optimized for use with Shimano's 10-speed cassette and narrow chain.
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