Polini Evolution gear transmission cover Piaggio/Gilera 50cc (12 mm)

The reinforced Polini Evolution gear transmission cover is an excellent upgrade for Piaggio and Gilera 50cc engines, especially for tuning stages from 70 cc onwards. Stock Piaggio covers have gear shafts that are only slide-guided, which means more friction, poorer lubrication and a higher risk of wear or engine case damage.

The Polini Evolution cover is equipped with ball and needle bearings that significantly reduce friction in the gearbox, improve power transmission efficiency and increase the reliability of the entire drivetrain. This greatly reduces the risk of engine case damage due to shaft play or gearbox seizure.

It is a high-quality solution intended for more demanding users and higher-performance engines, where reliability is crucial.

Installed bearings:

• 6201 C3 (12 × 32 × 10 mm)
• 6203 C4 (17 × 40 × 12 mm)
• NK24/16 (24 × 32 × 16 mm)

Technical specifications and compatibility:

• Suitable for: Piaggio / Gilera 50cc
• Intermediate shaft diameter: 12 mm
• Wheel shaft diameter: 24 mm
• Type: reinforced gear transmission cover with bearings
• Purpose: tuning and improved transmission reliability

Warning:
The cover is suitable exclusively for Piaggio gearboxes with a 12 mm intermediate shaft and 24 mm wheel shaft.

Ideal choice for anyone who wants to reduce transmission losses, increase engine reliability and ensure long service life on more powerful setups.