Motor Sprockets & Shaft Extensions

These high-quality replacement primary chains from Twin Power are superior to the O.E.M. parts.

Fits all 2007-Present Touring Models -Twin Cam & Milwaukee 8

Solid Bushings
7200lbs Tensile Strength
84% Decrease in Chain Stretch vs OEM Chain!

Our premium quality endless chains offer you precision-ground side plates for smoother operation. Their specifications and performance are designed to be superior to O.E. chains.

Made in Japan by a major Chain Mfg.

An overtightened primary chain is known to cause premature failure of the engine, transmission and primary bearings as well as other complications.
Usually, the factory automatic primary chain tensioner is the culprit.
Our manually adjusted Primary Chain tensioner helps prevent premature engine and transmission bearing failure by allowing proper chain tension of 5/8" to 7/8" free play when cold.

Fits  2006-17 Dyna & 2007-2017 Softail Models

An overtightened primary chain is known to cause premature failure of the engine, transmission and primary bearings as well as other complications.
Usually, the factory automatic primary chain tensioner is the culprit.
Our manually adjusted Primary Chain tensioner helps prevent premature engine and transmission bearing failure by allowing proper chain tension of 5/8" to 7/8" free play when cold.

Fits  2007-16 FLT & FLH Touring Bikes

Replacement Adjusting Assembly for #4628 32T Primary Chain Adjuster
Heat Treated Steel

Replacement Tensioner Shoe for #4628 32T Primary Chain Adjuster
Nylon 6/6

Replacement Tensioner Shoe for #4635 Touring Adjuster & #4627 Dyna and Softail Adjuster
Nylon 6/6

(2) .048" Thick Shims for fine tuning motor sprocket to clutch basket alignment.

Works with all Big Twin engines from 1958-2006 (except 2006 Dyna)

(2) .048" Thick Shims for fine tuning motor sprocket to clutch basket alignment.

Works with all 2006+ Twin Cam & M8 engines (except 2006 Touring & Softail)