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