XLC BR-X59 Floating Rotor - 6 Bolt - CNC Machined - 180mm or 203mmXLC BR X59 Floating Rotor 6 Bolt CNC Machined 180mm or 203mm These XLC brake discs have an attractive design and offer high level performance, weight and stability. Extensive tests show that they have excellent heat dissipation and strength and thanks to the CNC machined braking surface you have a clear way to indicate wear. Two piece floating rotor Improved stopping performance in wet conditions Low heat in dry conditions Reduced brake pad wear