BDL’s chain drive features our “COMPETITOR CLUTCH” for absolute transfer of power to the rear wheel. Our 7- plate Kevlar clutch provides at least 60% more clutch surface than stock. Our 9-spring pressure plate provides varying spring pressure needed for stock to strokers. Simply add or subtract springs for the proper tention on your bike.

* Part number CD-1-90 includes a PG-300 9 tooth starter pinion gear for use with 1994-2006 starters

Part No.	Description	Year
CD-1-70	Chain drive kit for Big Twin electric start (includes front sprocket, rear basket with “Competitor Clutch,” Diamond primary chain & adjuster assembly).	1970-83
CDCS-1-70	Same as above except includes BDL 25 tooth compensator
CD-1-86	Chain drive kit for Big Twin electric start (includes front sprocket, rear basket with “Competitor Clutch,” Diamond primary chain & adjuster assembly).	1986-89
CDCS-1-86	Same as above except includes BDL 25 tooth compensator
CD-1-90	*Chain Drive kit for Big Twin electric start ( Includes front sprocket, rear basket with ”Competitor Clutch,” Diamond primary chain & adjuster assembly).	1990-Up
CDCS-1-90	Same as above except includes BDL 25 tooth compensator
CD-2-36K	Chain drive kick start rear basket assembly only with “Competitor Clutch.”	1936-83
CD-2-70	Chain drive electric start rear basket assembly only with “Competitor Clutch.” Fits 4-speed & 5-speed.	1970-83
CD-2-86	Chain drive electric start rear basket assembly only with “Competitor Clutch.” Fits Softail, FXR & FLT.	1986-89
CD-2-90	Chain drive electric start rear basket assembly only with “Competitor Clutch.” Fits Softail, FXR & FLT.	1990-Up
CD-3-90	Chain drive electric start rear basket only. For Use With Stock Clutch. Fits Softail, FXR & FLT.	1990-Up

CDOFS-25	25 Tooth 1” offset front sprocket. Fits 1991-up Softail
CDOFS-25-500	25 Tooth 1/2” offset front sprocket. Fits 1991-up Softail

CS-24A	24 tooth BDL’s new patented Chain Compensator. Fits 1980-up big twins
CS-25A	25 tooth BDL’s new patented Chain Compensator. Fits 1980-up big twins U.S. Patent 6,234,909 B1

See Installation Guide for more information