Absolute Black Premium Oval 110 BCD Road Inner Chainring for Shimano Dura-Ace 9100

Our premium 2X Campagnolo compatible Oval chainrings are designed for Super Record, Record and Chorus 4 bolt 145/112bcd cranks. They work perfectly with 11 & 12spd drivetrains thanks to our ingenious design. Incredibly stiff and light. Super fast shifting thanks to our patented shifting ramp design. Same brilliant oval design like in the rest of the collection. Use original bolts to mount them.

Size (Weight):

• 39T (42g)
• 53T (90g)

Compatibility: Campagnolo Super record, Record, Chorus 4 bolt 145/112bcd for 11 and 12spd versions.

Materials: CNC machined 7075 Txxx Aluminum. Long-lasting construction. Type II anodizing

Ovality: Optimized to each size separately. 39T- 10.4%, 53T - 10-11.2% ; Timing of 108 -110.5° after TDC (top dead center) - Ideal for road climbing. Patent Pending

Advantages of Absolute Black Road Oval chainrings:

• One of a kind special oval shape that helps you climb easier and faster (Patent Pending)
• Over 15% stiffer than Rotor Qrings due to thicker, 5mm construction
• Bespoke Absolute Black 6 point ramp and recess shifting design shifts better than any other brand and model of oval chainring
• Finest design that provides excellent strength to weight ratio
• You will not "feel" the oval shape while pedaling
• Your pedaling action will feel smoother
• Helps reduce stress on knees and helping your legs remain fresher for longer
• You will be able to maintain better cadence while climbing
• Reduces possibility of leg cramps
• You will reduce chainring/cog shifts by at least 15%