ABSOLUTEBLACK 110mm 34T 4B ASYMMETRIC 2X BLACK R9100/8000 SPACERS CNC machined aluminum outer ring

CNC machined aluminum outer ring and heat treated chromoly inner ring

Innovative chamfering of the outer links enables excellent shifting performance

Exceptional pad life

Advanced alloy rim braking compound provides superior performance in both dry and wet conditions

Mounts with original crank lockring

ABSOLUTEBLACK 110mm 34T 4B ASYMMETRIC 2X BLACK R9100/8000 SPACERS CNC machined aluminum outer ringRound chainrings specifically compatible with Shimano cranks Dura Ace 9100, Ultegra 8000 & 105 R7000 but can be retrofit to all 9000 and 6800 series cranks Ramps on big rings are specially configured for combinations: 50 34, 52 36, 52 38, 53 39T Rugged CNC machined 7075 aluminum construction Use original bolt when changing inner ring only, long bolts when changing outer Super stiff design due to thicker, 5mm construction