Mounting: 110 BCD x 5
Bolts: Reuse original Sram bolts except the hidden bolt. AB Outer chainring comes with the hidden bolt in the package. If changing inner chainring only - reuse all original bolts.
Ovality: Optimized to each size separately. 34T- 6.5% ; 36T- 11.4%, 50/52 - 10.3% ; Timing of 108 -109.5° after TDC (top dead center) - Ideal for road climbing. Patent Pending.
Advantages of Absolute Black 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 AbsoluteBlack 6 point ramp and recess shifting design shifts better than any other brand and model of oval chainring
- 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%