Crankshaft NARAKU Racing HPC Piaggio / Derbi D50B0

High-quality crankshaft from Naraku. Produced according to the OEM guidelines of Japanese vehicle manufacturers. Made in Taiwan!
This heavy-cheeked HPC racing crankshaft increases pre-compression in the crankcase for improved filling. The extra inertia improves performance and shifts power into the upper rev range. The crankshaft design, with plastic inserts, only slightly increases the mass compared with the original, making it ideal for 50cc engines.
Delivery includes small-end bearing.