New Front Hydraulic Brake Master Cylinder for Yamaha Yz490 Yz250 Yz125 Yz85 Yz80 Fits yamaha yz490 yz250 yz125 yz85 yz80 Fit 7/8" handle bar, with lever and brake light switch Without rear view mirror hole Piston bore diameter 12.7mm, banjo Bolt 10x1.25 mm thread pitch black pump + polish lever, right side