absoluteBLACK Premium Oval 110 BCD Road Inner Chainring for Shimano Dura-Ace 9000 - 36t 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 4-bolt cranks like Dura-Ace 9000 Ultegra 6800 105 5800 and others. 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

Not compatible with FSA cranks