Lewis HD-E Disc Brake Rotor 2.3/3mm Thick for E-motor Size:220mm*3.0mm-54mm COX070901 Oil Port O-ring x1

COX070901 Oil Port O-ring x1

Piston O ring：Caliper #4（Quantity‌：4）

The combination of premium-grade materials and an optimized structural design results in superior strength-to-weight performance

Chainring: 8 Bolt SRAM Interface

Diaphragm：Lever #7（Quantity‌：1）

Lewis HD-E Disc Brake Rotor 2.3/3mm Thick for E-motor Size:220mm*3.0mm-54mm COX070901 Oil Port O-ring x1Size: 223mm*2. 3mm 223mm*3. 0mm 44mm 223mm*3. 0mm 54mm 220mm*3. 0mm 54mm BCD 44mm for MTB, E Moto Front Wheel BCD 54mm for E Moto Rear Wheel Material: 420 stainless steel. Laser cut and molded with high precision, low deformation and low induced stress. The dense perforated design used in the HD rotor effectively increases the heat dissipation area of the rotors. The 12 spoke support design, coupled with internal triangular reinforcement, increases