absoluteBLACK Premium Oval 110 BCD Road Outer Chainring for Shimano Dura-Ace 9100 - 52t 110 Shimano Asymmetric BCD 4-Bolt Black. absoluteBLACK Premium Oval 110 BCD Road Chainrings utilize absoluteBLACKs top-tier design features to greatly improve traction and speed. They are designed for Shimano Dura-Ace 9100 Ultegra 8000 & 105 R7000 4-bolt cranks only. Optimized with smooth shifting in mind premium chainrings have a 6-point ramp and recess design. Chainrings are crafted from CNC machined 7075 aluminum and feature an anodized finish for exceptional durability.

Oval shape reduces stress on knees helps to keep your legs fresh and does not feel any different while riding

Chainring design reduces the possibility of leg cramps and allows you to maintain a better cadence while climbing

10 11 and 12-speed compatible