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Shimano GRX FC-RX820-1 170mm 42T 12sp

Go beyond your limits with the Shimano GRX FC-RX820-1 crank. Choose closer gear steps or ultimate range with a 10-45T or 10-51T cassette, and 40T or 42T chainrings. Its weight-saving design and customizable crank arm lengths of 170, 172.5, and 175 mm make it the ultimate gravel gearing option for adventurous riders.

Features
  • Optimal gearing for mixed-terrain riding
  • 10-45T and 10-51T cassette options serve array of riding styles
  • SHIMANO GRX 12-speed series
  • Average weight 656 g