Shimano GRX FC-RX820-2 Chainring - 31t Inner Ring 80 BCD For 2x 12-Speed BLK ModelNumber=G1412 Black or silver anodized finish

Black or silver anodized finish

This rear derailleur also features an integrated chain stabilizer that delivers quieter shifting and more secure chain management during rough rides

2-color patented parabolic shackle

which allows the fabric to be in direct contact with your skin

Deep aggressive lugs and studs dig into snow and ice

Shimano GRX FC-RX820-2 Chainring - 31t Inner Ring 80 BCD For 2x 12-Speed BLK ModelNumber=G1412 Black or silver anodized finishThese Shimano GRX RX820 2 anodized aluminum chainrings are for specifically designed for use with GRX FC RX820 2 2x 12 speed cranksets. Ring Position Type Inner Tooth Count 31 Drivetrain Speeds 12 Round or Oval Round Chainring BCD 80 Material Aluminum Color Black Weight 40 Defined Color Black Number of Bolt Holes 4 Bolt