Advance Unit, Stainless steel, Hardened weights
High quality advance unit which features corrosion resistent stainless steel plate, shaft and studs.
The weights are made from heat treated steel, coated with high tech polymers and held in place with zinc-plated wire springs
Fits: > 70-99 Big Twin (excl. Twin Cam); 71-03 Sportster.
Models equipped with points and electronic ignitions that use mechanical advance (NU)
These units are distributed by Motorcycle storehouse.