Lightweight billet steel duplex timing gear set. It has a unique crank gear that has several keyways so it can be easily adjusted in two-degree increments, which enables precise cam timing to compensate for reground cams or to dial in maximum power. We have found that they give a tight and precise chain fit. Supplied with low-stretch German-manufactured Iwis timing chain. Ref: CS8000.
For even finer timing adjustment, add a 1-degree offset timing key SEN0051A, sold separately.