For a conventional 750cc side-valve, the original primary drive or something of equal value is usually sufficient.
However if you consider to increase the power of your 750cc engine and might even takle a spin on the race track, your 3-disc clutch will probably not be the appropriate companion.
In any case, this Cannonball primary drive offers traction to the very end of a 750cc Flatty's tuneability. CNC – machined steel and aluminium components, 5 friction discs and a sturdy aluminium pressure plate with spring-loaded steelballs assure a smooth frictional connection. The high quality of all components, perfect function and durability are the main aspects that have been taken care of while creating this product. Clean disengagement, engagement such as easy adjustment are nice side effects of this.
Anyone who rides it knows what we are talking about. But surely people will also enjoy this drive if they don't have a start number on their springer fork.
By the way, this primary drive is perfectly suited for hand clutch conversion, as the spring forces are comparatibly low. The result is a smooth, easy and precise clutch operation at the hand lever.

Complete, smooth running belt drive kits for 45" models which eliminate the need for primary lubrication and thus the inevitable spot of oil underneath your scoot. The kits comprise clutch hub and bearing, front pulley, clutch shell with pulley and a belt. All versions fit under the original chain guard for an easy installation and use the original discs, springs and pressure plate.

When it comes to belt drive systems you don’t want to make compromises, because dependability is what counts most here. The tried and tested BDL beltdrive systems range among the highest quality drive train products available for the Harley-Davidson aftermarket.

When it comes to belt drive systems you don’t want to make compromises, because dependability is what counts most here. The tried and tested BDL beltdrive systems range among the highest quality drive train products available for the Harley-Davidson aftermarket.
These are belt drive kits with 3” belts for open applications and kick start only bikes. They do not inlcude clutch and engine/transmission plate.

When it comes to belt drive systems you don’t want to make compromises, because dependability is what counts most here. The tried and tested BDL beltdrive systems range among the highest quality drive train products available for the Harley-Davidson aftermarket.
These belt drive kits come with a complete Competitor Clutch assembly which will meet all your performance needs. The package includes race-proven aramid clutch plates and a large double row hub bearing which provides maximum strength and secures the clutch basket and clutch hub together for that “non-floating” basket, which will give you a smoother clutch operation and positive clutch adjustment. You can run the clutch with 6 or 9 coil springs and shoulder bolts depending upon your needs for pressure plate adjustment, clutch pack pressure and clutch lever pull. A polished aluminum pressure plate tops off that custom look for the open belt drive installations.

When it comes to belt drive systems you don’t want to make compromises, because dependability is what counts most here. The tried and tested BDL beltdrive systems range among the highest quality drive train products available for the Harley-Davidson aftermarket.
These belt drive kits come with a complete Competitor Clutch assembly which will meet all your performance needs. The package includes race-proven aramid clutch plates and a large double row hub bearing which provides maximum strength and secures the clutch basket and clutch hub together for that “non-floating” basket, which will give you a smoother clutch operation and positive clutch adjustment. You can run the clutch with 6 or 9 coil springs and shoulder bolts depending upon your needs for pressure plate adjustment, clutch pack pressure and clutch lever pull. A polished aluminum pressure plate tops off that custom look for the open belt drive installations.

Primo belt drives are developed and manufactured by Harley riders for Harley riders. Before the first Primo belt drive was sold, the belt drive systems had been tested on a Top Fuel drag bike until they would stand up to the strain. Each kit consists of the complete belt drive unit, a sprocket shaft nut, all necessary hardware and detailed installation instructions.

Primo belt drives are developed and manufactured by Harley riders for Harley riders. Before the first Primo belt drive was sold, the belt drive systems had been tested on a Top Fuel drag bike until they would stand up to the strain. Each kit consists of the complete belt drive unit, a sprocket shaft nut, all necessary hardware and detailed installation instructions.
These are 2” versions for more of engine power. The clutch shell will not fit into standard primary cases.

Primo belt drives are developed and manufactured by Harley riders for Harley riders. Before the first Primo belt drive was sold, the belt drive systems had been tested on a Top Fuel drag bike until they would stand up to the strain. Each kit consists of the complete belt drive unit, a sprocket shaft nut, all necessary hardware and detailed installation instructions.
These are 3” versions for open applications.

Early model belt drives featuring the ultra severe-duty 11mm Aramid Polychain belt. These belt drives are designed for enclosed primary fitment, either within aluminum primaries or within tin (stamped steel) covers. For the later aluminum primary models (1965-1984) two kits are offered for kickstart and electric start models. The earlier tin primary models are available for tapered (1937-1954) or splined shaft (1955-1964) applications, kickstart only.