Shimano GRX FC-RX820-2 Chainring - 31t Inner Ring 80 BCD For 2x 12-Speed BLK ModelNumber=G1412 Wear it as a standalone

Wear it as a standalone piece on cold rides or layer it up for super-cold days

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

5mm Hole 32 Brake Disc/Rim Type Tubeless Material Aluminum ERD 601mm Color Black Weight 426g Wheel Size 700C Hole Count 32H Rim Type MSW

Shimano GRX FC-RX820-2 Chainring - 31t Inner Ring 80 BCD For 2x 12-Speed BLK ModelNumber=G1412 Wear it as a standaloneThese 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