ROTOR 公路 圓碳纖齒環 BCD110x5 外齒環 破風 黑色

Weight:??8% lighter than full alloy aero ring, 132g per 52A BCD110

Sizes:?Available in 53, 52 and 50t for BCD110

Characteristics:

• -7075-T6 CNC machined structure reinforced with a 3k woven, high-modulus carbon fiber finish
• -Aero design: reinforced rigidity and aerodynamics that increase stiffness by 20%
• -Designed to work with all 9-, 10- and 11- speed groupsets