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Primary Drive Assembly
Primary Chain Drive Systems for Big Twins include 76 or 82 link Diamond primary chain, chain shoe adjuster assembly, clutch 
drum basket with starter ring gear and steel and fiber clutch plates with pressure plate assembly. Correct front compensator 
sprocket assembly includes all parts necessary for installation. Including sprocket nut. 5-Speed Big Twin Softail models and all 
pre1985 FLH-FX 4-Speeds require 82 link primary chains, 1980-up FLT-FXR 5-Speeds require 76 link primary chains. 
82 Links  76 Links 
Year
18-0102*  18-0114* 1998-06
18-0103*  18-0113* 1994-97
18-0104*  18-0112* 1991-93
18-0105*  18-0111* 1985-90
*Note: Units include compensator front sprocket assembly.
18-0102 1998-2006
18-0104 1991-93
18-0103
18-0104
18-0114
18-0111