The Record 12 speed chainset shares the same technologies used on campagnolo super record chainset. Unidirectional carbon fiber construction guarantees continuity of the entire groupset, and features Campagnolo's Ultra-Torque bottom bracket system with steel axle to ensure perfect transmission of power. The innovative design of the outer chainring ensures faster, quieter shifts thanks to the contoured pin, and the symmetrical design of the inner chainring teeth provide improved stability with chain crossovers.   Features Updated, advanced carbon layup. Unidirectional carbon finish. Steel axle. Improved four arm spider design. Optimised BCD eight bolt design. CULT bearing. Differing number and location of pins and shifting zones according to chainring combination ensures optimum location of shift zones during pedal stroke. Weight: 710 grams (172.5mm).