This Mega Nut Sprocket/Pulley Lock-Nut is the cure for loose nuts. Precision machined from high tensile strength steel these nuts have a built-in lock plate which is much easier to index than the stock hardware. It can fit in any position with the included mounting hardware, or can also be secured in additional places by an easy drilling and tapping operation for high output applications.

Fits: 1993 & Up Harley-Davidson Sportster models, and 1993-2006 Big Twin and Twin cam models (except 06 Dyna).