11.5" / 292mm diameter. Floating. Red powder coated carrier. 56.3mm I.D.; 8.7mm (5/16") counterbored mounting holes. 3.25" bolt circle mount holes. Mount style ''B''. Note: Mounting holes are fitted with 5/16" inner sleeves. With the reducer sleeves removed mounting hole diameter is 3/8"; for rear use. Note: Can be used on pre-2000 models when a 56.3mm to 50mm I.D. reduction ring is used. 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. Optimized for OEM radial calipers. OEM replacement reference 44156-00; 44136-00.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.- 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 - Optimized for OEM; accessory and radial calipers - High-strength stainless steel inner part for increased durability with minimized distortion and fading - Powder coated carrier - Suitable for all common brake pads