Norton offset crankshafts can be supplied with a full flywheel for optimal smoothness. This crankshaft type if recommended for solid-mounted Atlas engines. The crankshaft diameter, with counterweights, is about 1/4” smaller then a stock crankshaft to clear any high-lift camshafts and reduce the rotational weight of the crankshaft. Our crankshafts are usually 3.5 to 4.5 pounds lighter than a stock crankshaft.
This crankshaft costs $1400 USD
76° Norton crankshafts do not cost extra; they are the same price as a 90° offset crankshaft.
Owners of Norton MKIII Commando’s must provide a donor crank as these cranks are rare. Crank must be dismantled for shipping as stock flywheel is not required.