absoluteBLACK Premium Oval Chainrings for Shimano

absoluteBLACK Premium Oval Chainrings for Shimano

The absoluteBLACK Premium Oval Chainrings for Shimano are specifically designed for DURA-ACE 9100, Ultegra R8000 and 105 R7000 cranksets. Featuring fast shifting and smooth pedaling, these are the most premium oval chainrings on the market!

Advantages to aB Road Oval Chainrings

• One of a kind special oval shape that helps you climb easier and faster
• 15%+ stiffer than ROTOR Q-rings
• Bespoke 6-point ramp and recess shifting design shifts better than any other brand and model of oval chainring
• Smoother pedaling action
• Reduced stress on knees and helping your legs remain fresher for longer
• You will be able to maintain better cadence while climbing

Compatibility

These chainrings are compatible with Shimano DURA-ACE 9100, Ultegra R8000 and 105 R7000 cranksets. They are 10-, 11- and 12-speed compatible.

IMPORTANT – 34T inner chainring is not compatible with Quarq and power2max power meters.

Specifications

• Ovality: 34T – 6.5% | 36T, 38T, 39T – 11.4% | 50T, 52T, 53T – 10-11.2%
• Timing of 108 – 110.5° after TDC (top dead center)
• CNC machined 7075 aluminum
• Weight: 34T – 31 grams | 36T – 37 grams | 38T – 41 grams | 39T – 42 grams | 50T – 120 grams | 52T – 137 grams | 53T – 139 grams