QO RACE Inner Chainring 2x BCD110x4

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.

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

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

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