BDL, primary chain drive kit. With rigid motor sprocket - 70-83 B.T.(NU) 518738 9-gallon capacity

9-gallon capacity

Comes with the BDL ball bearing lock-up clutch and a 72-47 drive ratio

Toria Jaymes

Note: For 91-99 OEM cases the MCS 906636 thrust washer is used

Improves power and performance

BDL, primary chain drive kit. With rigid motor sprocket - 70-83 B.T.(NU) 518738 9-gallon capacityWith a rigid motor sprocket. This BDL chain drive kit comes complete with everything you need and comes with a classic rigid motor sprocket without a damper as used on 55 69 Big Twin models. Kit consist of a primary chain, primary chain adjuster, the motor sprocket, and a complete rear clutch shell sprocket assembly. The clutch shell includes a starter ring gear for electric start options and contains the BDL competitor clutch for positive shifts and