MCS Primary Transmission Locking Tool for Harley-Davidson

Used between the primary chain and the front engine sprocket to prevent primary movement when loosening and retightening the sprocket and clutch nuts.
Made of POM (a polyoxymethylene polymer), an extremely strong and resistant material.

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