WILL ONLY FIT BIKES WITH 12mm AXLE AND SDG WHEELS THIS BRAKE IS FOR DISC BRAKE REAR, ITS TO FIT 200mm DIAMETER REAR DISCS. THE MASTER CYLINDER IS MX STYLE WITH RESERVOIR BUILT IN WITH SIGHT WINDOW. COMES COMPLETE WITH BRAIDED HOSE. THE RESERVOIR MOUNTING HOLES ARE 45-50mm APART FROM HOLE CENTRE TO HOLE CENTRE, THE BRAKE ROD LENGTH IS 105mm LONG BUT HAS ADJUSTMENT FOR LONGER. IT WILL FIT BIKES THAT HAVE A SEPARATE RESERVOIR IF THE MOUNTING DIMENSIONS ARE THE SAME. SUPPLIED WITH BRAKE PADS FITTED. WE ALSO SELL UPGRADED SINTERED PADS TO FIT THIS CALIPER. PLEASE CHECK MEASUREMENTS PRIOR TO PURCHASE AS THERE ARE MANY VARIATIONS. Visit our ebay shop and look through our large range of spares, we also sell new Pit Bikes.Click Here To Visit Our Shop ORDER BEFORE 2PM TUESDAY TO .