Pivot-type Brake Bias Bar Tilton new pivot type brake bias bar system includes many featuresthat maximize your brake system. The bias bar's unique mounting system enables it to be adapted to a veriety of applications. Designed for use with Tilton 77-Series master cylinders. FEATURES - 7/16''diameter - Needle bearings for smooth operation - 3 positions for ratios.(6.2:1 5.3:1 4.7:1) - 14 Turns of total adjustment 63/37% to 37/63% 1 turn =1.85% - Incorporates an over travel limit in case of front or rear brake circuit failure.