If you like to create custom choppers,sport bikes and pro street bikes, based off harley davidson motorcycles, custom frames, springer frontends and wheels, we have the perfect helmet for you. Offering Hydra glide, Industry Leading mini chopper Solutions, and Old School Chopper. mini chopper Harley davidson earned the coveted navy e award for it's contribution. Sports bikes are sometimes called bullet bikes, due to their light weight and high speeds, but this is considered derogatory; other slightly derogatory terms include crotch rocket and plastic bikes (owing to the fairing usually sported by these bikes). If a tire loses grip, the rider may crash and make contact, in a rather forceful (and very possibly a painful) manner, with the road or other obstacles. 2 l) v-twin, introduced in 1922, and the gas tank we still see today, called a teardrop tank, in 1925. A double overhead cam (also called a dual overhead cam or dohc) engine is a type of internal combustion engine where the camshafts that operate the intake and exhaust valves are mounted above the cylinders, and where there are separate camshafts for inlet and exhaust valves. (e) exhaust camshaft, (i) intake camshaft, (s) spark plug, (v) valves, (p) piston, (r) connecting rod, (c) crankshaft, (w) water jacket for coolant flow. The air-fuel mixture already in the cylinder is being compressed. |