absoluteBLACK Premium Oval 110 BCD Road Outer Chainring for Shimano Dura-Ace 9100
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absoluteBLACK Premium Oval 110 BCD Road Chainrings utilize absoluteBLACK's 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 Outer rings feature 6-point shifting ramps that work in conjunction with the tooth recesses to stabilize the chain while shifting, and allow for easy and quick gear changes Outer chainrings also features 12 down-shifting points 50t, 110 Shimano Asymmetric BCD, 4-Bolt, Black Use absoluteBLACK long chainring bolts to install outer ring (sold separately) 120g Color: Black Material: Aluminum Tooth Count: 50 Ring Position/Type: Outer Drivetrain Speeds: 11 Defined Color: Black Chainring BCD: 110 Shimano Asymmetric 52t, 110 Shimano Asymmetric BCD, 4-Bolt, Black Ramps are designed for specifically for a 52/36 or 52/38 combination Use absoluteBLACK long chainring bolts to install outer ring 137g Color: Black Material: Aluminum Tooth Count: 52 Ring Position/Type: Outer Drivetrain Speeds: 11 Defined Color: Black Chainring BCD: 110 Shimano Asymmetric