CDB-1-90 BDL, BB-Lock primary chain drive kit. Rigid

This BDL primary chain drive kit is the definitive solution for riders looking to eliminate clutch slip on high-torque Big Twins. Designed to fit 1998 to 2006 Big Twin models, excluding the 2006 Dyna, this kit features a rigid 25-tooth motor sprocket for direct and immediate power delivery. The centerpiece of the kit is the proven BDL Ball Bearing Lock-up clutch, which provides exceptional holding power and a consistent lever feel. By upgrading your primary with this technology, you ensure that every bit of horsepower makes it to the rear wheel. It is a robust, performance-oriented alternative to the stock setup, perfect for those who demand more from their drivetrain. If you prefer a compensated setup, a version with a patented compensator sprocket is also available.