Brand New Hope 40T-Rex Ratio Expander Sprocket - SRAM / Shimano - Black Gold Silver. Hope 40T-Rex allows you to upgrade your existing 11-36 10spd cassette to give an 11-40 range. Full manufacturer's warranty. 


Item Specifications:

Shimano and Sram specific 40t sprockets have been designed allowing benefits that wouldn't be possible with a larger sprocket size or with a universal type design:

  • Precise matching of the tooth profiles and shifting points specific to each cassette;
  • Perfect mating of supporting tabs reducing flex and aiding shift performance;
  • Lower B-tension adjustment is needed ensuring good shifting throughout the cassette range compared to fitting a 42t
  • Compatible with: Shimano XT and XTR 11-36 10spd cassettes and Sram PG1030, PG1050 and PG1070 11-36 cassettes
  • Hard anodized 7075T6 aluminium
  • Available in black, silver or gold hard anodised finish
  • Weight: 74g

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