RFX Race Wave Fixed Brake Disc FXBD1010055BKRFX Race Series Discs are designed and tested at the highest level by top World and British championship race teams. Precision laser cut from high grade stainless steel and heat treated for wear resistance, RFX Discs also feature a special Comaxit heatproof coloured finish on non wear faces for the best corrosion resistance. RFX Race Series Discs are surface ground to within 0. 01mm for instant brake feel and reduced fade. RFX Race Series Discs are