Ultima’s 3.35” belt drive assembly revives the Old School Street style primary drive at a new affordable price.

The Street style unit with features like the extra plate clutch assembly and Goodyear 85mm wide (3.35”) belts were designed to handle all the power you can throw at it.

Ultima Dyna Beltdrive Kits fit both Evo and TwinCam 1990-2006 Dynas with no modifications needed. The aluminum backing plate is billet 6061-T6.