13"/ 330mm diameter. Floating. Stock is 11.8" / 300mm OD. Open center with 6.7" BCD. 5-bolt. Cross cut bolt mount holes (cast wheels) (Mount style 'C'). Optimized for OEM radial brake calipers. Kit includes caliper adapters, optimized for OEM radial brake calipers. Brake rotors are manufactured from a special stainless steel alloy and are heat treated. This offers an excellent braking capability with high wear resistance. The material is laser-cut for perfect precision and cross-grind for a perfectly flat surface. Note: With approval. Check your local MCS dealer or the MCS sales department for exact type of approval and validity on bike model and years on the test report. Note: Requires separate purchase of caliper adapter to compensate for the larger brake rotor diameter. - Manufactured in OEM quality - Perforated braking surface for reduced noise and good responsiveness - Extremely heat resistant, offering stable braking performance under all conditions - High responsiveness due to increased brake grip - High-strength stainless steel inner part for increased durability with minimized distortion and fading - Black powder coated inner carrier - Suitable for all common brake pads