25 mm inner rim width

Solid: 71% polyamide nylon

This creates a much more stable platform and does a better job protecting your rear derailleur

Wide field of view for enhanced sport performance

Shimano RT-CL750 Disc Brake Rotor - 220mm - Centrelock - 2.2mm PLP|Riding Style 25 mm inner rim widthFeatures More power: the 220mm spec provides the highest braking power in Shimano's rotor lineup, with improved bite and modulation More robust: a 2. 2mm thick stainless steel rotor adds strength, improves heat capacity, and better withstands impacts from trail debris More consistent: longer life than standard 1. 75mm thickness rotors Versatile: both 200mm and 220mm sizes are compatible with the newest generation of Shimano's 4 piston brakes