The Racing Corsa Crankshaft and 12mm Pin is one of the fundamental components for transmitting motion: its design and production must be carefully cared for to guarantee maximum performance and reliability.The new Racing Horizontal Minarelli Crankshaft is the result of studies and tests carried out by Athena's Technical and R&D Office, to obtain greater resistance under stressful working conditions, even in the most intensive uses. Forged in 18NiCrMo5 steel with a high breaking load, this crankshaft has been redesigned with aluminum inserts and lightened in weight, allowing for improved balance (over 16,000 rpm). In addition, vibrations have been eliminated in favor of increased longevity of the bearing shells, shims, and thermal part. The crankshaft is perfectly matched to Athena's racing cylinder kits.