For Michael and Allen Posenauer, the father-and-son duo at AMP-Motorcycles, building custom bikes was just a way for them to bond with one another at first. The two would get together to wrench on two ...
The Kawasaki Ninja 400 and Z400 motorcycles remain strong in the Japanese market, where stricter licensing rules limit engine displacement to 400cc for beginner riders. With 399cc engines, these ...