QO RACE Inner Chainrings are designed for smooth, reliable shifting and maximum power transfer. Precision-machined from 7075 T6 alloy, they’re built to withstand the demands of high-speed road racing, fast climbs, and full-gas intervals.

The tooth profile is optimized for 2x drivetrains, ensuring crisp front shifts even under load.

Features:
– 7075 T6 CNC-machined alloy construction
– Optimized for fast, clean 2x shifting
– Designed to pair with any QO RACE Outer chainring.
– Compatible with QO RACE 110x4 BCD spiders.
– Available in 34T, 36T and 40T

Tech Specs:
– 2x drivetrain optimized
– Bolt circle diameter: 110mm x 4-bolt
– Weight: 39g (36T)


Pairing guide:
50-34 | 52-36 | 54-40

Smooth, fast, and race-proven. 100% QO