Jims Primary Transmission Locking Tool for Harley-Davidson

It is used between the primary chain and the front sprocket of the engine to prevent movement of the primary when loosening and retightening the sprocket and clutch nuts.

Made of POM (polyoxymethylene polymer), also called Delrin, an extremely strong and durable material.

Fits: 4 & 5 Speed Big Twin (36-06 models); Sportster XL (57-20 models); Buell (87-10 models)