Purchase at Chainreactioncycles.com

  • 40T expander allows you to upgrade your existing 11-36 10spd cassette to give an 11-40T range
  • The most advanced shifting ramps and teeth profiling on the Market play with great harmony with rest of the Shimano cassette.
  • 16 upshift and 24 downshift points. Shifting is crisp and extremely quick.
  • Compatible with Shimano  XT (CS-M771-10 11-36) and XTR (M980 11-36) only.
  • Compatible with 1x10 and 2x10 drivetrains
  • Installing the cog is easy. Remove the 17t cog from your cassette, place the 40T cog on your freehub, then install your existing cassette back in place.
  • Designed in UK, manufactured in Poland
  • 7075 Txxx Aluminum. Long-lasting construction!
  • 78g
  • Color: Black
  • RRP 43.99£

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