The all new HS2 Disc , specific for mountain biking, is designed to improve braking performance while reducing noise and improving heat dissipation. The new brake band offers better interaction with the brake pads and the spokes are coated with heat-dissipating paint. The HS2 is therefore a more powerful, quieter drive with the best heat management in its class.The + products: 2mm thicker rotor Better heat management (temperature rise 40 ° C lower than with Centerline, according to tests carried out at Lake Garda) 7% more power Specific to mountain bikingDetails: Center Lock fixing Rounded edgesReferences : 00.5018.176.004 / Rotor HS2 160mm Center Lock (lockring sold separately) Rounded 00.5018.176.005 / Rotor HS2 180mm Center Lock (lockring sold separately) Rounded 00.5018.176.006 / Rotor HS2 200mm Center Lock (lockring sold separately) Rounded 00.5018.176.007 / Rotor HS2 220mm Center Lock (lockring sold separately) Rounded