Shimano Ultegra FC-R8100 12-Speed Chainring - 34t Asymmetric 110 BCD BLK NK MFPN=616079 steerer OD 1-1/8" stem ID

steerer OD 1-1/8" stem ID 1-1/8" color silver

It also stops on its own when bike reaches the ground

Rings 38Number of Chainrings Chain Retaining SingleDrivetrain Speeds 13Chainring BCD 123Color BlackCrank Length (mm) 170Crank Intended Use GravelCrank Intended Use RoadCrank Intended Use CyclocrossBB Included NoPedal Spindle 9/16"Spindle Interface Type Campagnolo Ultra-TorqueDefined Color Black

Caliper only - does not include lever or hoses

25 Thickness In mm 16mm Primary Color Yellow Lock Type Key Bracket No

Shimano Ultegra FC-R8100 12-Speed Chainring - 34t Asymmetric 110 BCD BLK NK MFPN=616079 steerer OD 1-1/8" stem IDShimano Ultegra FC R8100 chainrings are constructed with high quality aluminum and are compatible with FC R8100 and FC 8100 P 2x 12 speed cranksets. Asymmetric 110 BCD Compatible with HG 12 speed chains Color Black Ring Position Type Inner Tooth Count 34 Round or Oval Round Drivetrain Speeds 12 Chainring BCD 110 Shimano Asymmetric Material Aluminum Defined Color Black Size 34T