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

Item: 50-0088
$45.00
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Update
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.
  • Low-profile Shadow design tucks derailleur close to the chainstay to help prevent damage from contact with rocks or other trail obstacles
  • Redesigned cage and pulley are optimized to deliver smooth and precise gear changes
  • Long-cage design provides wide gear range
  • Compatible with 10-speed Shimano components only
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