Polini crankshaft overhaul kits

Polini crankshaft overhaul kits are designed to deliver maximum efficiency, durability, and performance, making them ideal for both original and tuned engines. Each kit includes high-quality bearings and FKM (Viton) oil seals, and is available in different versions to cover the entire range of 2-stroke scooters, 50 cc enduro and motard motorcycles, classic Vespa models, and vintage mopeds.

High-Performance Bearings:

The bearings feature reinforced cages and are manufactured using carefully selected materials and precise tolerances to ensure:

• Optimal smoothness
• Reduced friction
• High resistance to loads and stresses
• Constant reliability over time

These characteristics guarantee smooth crankshaft rotation, improving engine response and contributing to a longer service life of the entire engine assembly.

FKM (Viton) Oil Seals

Polini oil seals made of fluorinated elastomer (FKM) provide superior sealing performance even under the most extreme conditions. Resistant to fuels, synthetic oils, additives, and high temperatures, they are the ideal choice for high-performance engines and demanding applications. The excellent chemical and thermal properties of the material ensure a perfect seal and long-term durability, even under critical operating conditions.
All components of the kit are also available individually, allowing you to choose the solution that best suits your needs: a complete overhaul or targeted replacement of bearings and oil seals.
All this comes with an extremely competitive quality-to-price ratio, making Polini Overhaul Kits a winning choice for both enthusiasts and professional mechanics.

Public price: starting from 9,50 euro + VAT

100% Made in Italy