High-quality durable cast aluminum construction for true O.E.M. fit and look. Perch assembly, O.E.M. style, clutch with 8 mm adjuster. Uses quality aluminum adjusters, not brass. True O.E.M. style shoulder pivot bolts will not pinch lever when tightened. Lock nut with washer holds pivot bolt in place and prevents loosening. Note: 7 mm adjuster.