Shimano GRX FC-RX610 2x12 Chainring - Four Bolt - 80 BCD - 51.1mm - Round - 30T - 12 Speed - Steel YGroup_7033438011437 These rings fit any 120

These rings fit any 120 BCD crankset or 4-bolt spider

these are as close as you can get to a skinsuit without wearing a skinsuit

You will need either the Half Bottle with DogBone or a B-RAD base to mount the Half Bottle

Compatible with most saddles

utilising classic mushroom rib style patter and a durable grip compound the ODI attack grips achieve excellent shock absorption as well as the round ends to stop grip blowouts

Shimano GRX FC-RX610 2x12 Chainring - Four Bolt - 80 BCD - 51.1mm - Round - 30T - 12 Speed - Steel YGroup_7033438011437 These rings fit any 120Shimano replacement chainring for GRX FC RX610 2 x 12 speed crankset.