| Mack |
| Perry E. Mack made motorcycle engines for the trade. The Mighty Mack Power Plant was used in alot of boardtrack racers, because of its over-head valve design. The Mack single was capable of 4 to 5 hp and the twin was capable of 7 to 9 hp. Mack Motors were used in Jefferson, Waverly, and Kenzler Waverly motorcycles. Perry E. Mack also had the P.E.M. motorcycle named after him. (see P.E.M.) |