CDBCS-1-90 BDL, BB-Lock primary chain drive kit. Compensated

When you want the smooth operation of a compensated drive combined with the massive holding power of a performance clutch, this BDL primary chain drive kit is the answer. It fits 1998 to 2006 Big Twin models, with the exception of the 2006 Dyna. The kit includes BDL’s patented 25-tooth compensator motor sprocket, which helps dampen engine pulses and protect your drivetrain components. Paired with the renowned Ball Bearing Lock-up clutch, this system ensures zero clutch slip and a smooth, predictable engagement every time you twist the throttle. This is a complete primary solution that brings modern engineering to your late-model Evolution or early Twin Cam, providing a significant upgrade over the factory chain drive components.