This is a quality aftermarket replacement part. Complete Rear Brake System. Comes with Master Cylinder, Caliper, Brake Pads & Caliper Bracket. Ready to mount. Condition: Non-Part Number, Aftermarket Part Type: Brake Master Cylinder & Caliper Placement on Vehicle: Rear Fitment: 2002-2017 for CRF250R 2002-2016 for CRF450R 2004-2017 for CRF250X 2005-2017 for CRF450X Colour:silver Material:Metal Package Contents: 1x Brake Master Cylinder Assy 1x Brake Caliper Assy Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.