OneUp Components
OneUp Components

Oneup Components Shimano 45T Expander

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Item #: CS212Z00
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OneUp Cassette Expander Cog Kit

The OneUp 45T Sprocket expands a 11-40 cassette by 12.5% speed drivetrain. Go ahead and change to a 34 tooth up front and re-gain some low speed. Compatible with 1x and 2x drivetrains, the OneUp 45T Sprocket easily installs to your XT or XTR cassette (not compatible with all 11-speed cassettes) To install, you simply remove the 18T cog and 1 cassette spacer from your freehub to make room to slide this giant cog on -better yet, the OneUp 45T Sprocket now ships with a 18T cog to replace both 17T and 19T to provide more even cassette progression which results in a smoother cadence with improved shifting.

OneUp Cassette Expander Cog Kit Features

  • Cassette progression: 11-13-15-18-21-24-27-31-35-40-45
  • Sprocket material: 7075-T6 Aluminum (45T), Nickel plated hardened steel (18T)
  • Sprocket weight: 65g more than stock 11-40 cassette
  • Compatibility: For XT/XTR M8000/M9000 11-40T cassettes. 11 Speed only. Standard freehub driver.
  • Cassette range improvement: 12.5%
  • Color: Matched to XTR

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CALIFORNIA PROPOSITION 65 WARNING: This product can expose you to chemicals including (Cadmium, Phthalates, Bisphenol, Nickel (Metallic), di(2-ethylhexyl)phthalate "DEHP"), which is known to the State of California to cause cancer and/or cause birth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov.

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