Malossi cast iron thermal unit D 46,5 piston pin 10

The Malossi cast iron thermal groups are the ideal choice for those who want to improve the performance of their moped.

These thermal groups are made with high-quality cast iron and are designed with extreme precision by Malossi, a company known for its attention to detail.

The maximum tolerance of 20 microns between the cylinder and piston ensures optimal coupling, while the internal transfer ports have been completely redesigned to ensure perfect compatibility with the original casings.

Mounting on original casings only requires boring the cylinder barrel passage.

Compared to the previous version, the new thermal group has significant improvements.

The exhaust has been redesigned both in terms of geometry and timing, to optimize the flow of fresh gases.

The intake ports are symmetrical and the flow paths have been completely revised.

The big news is the rear transfer ports, which have an appropriate inclination and a calculated progression of the flow crossing areas.

The union of the two rear ducts in the H shape allows to fully exploit the pumping work, transferring the maximum possible energy with the least losses to the flows.

These innovations guarantee a uniform washing between the right and left sides, improving combustion and greatly increasing the performance of two-stroke engines.

The result of all these features and improvements is an unprecedented increase in performance, which positions the Malossi thermal groups at the top of the range of cast iron cylinders available on the market.

SPECIFICATIONS

• Usage: Urban / Sport
• Power range Ø 46.5: 8-10 hp @8,500 rpm
• Level of tuning: Easy
• Compatibility: Original or approved exhaust

COMPATIBILITY NOTES

For installation, it is necessary to drill the original engine crankcase.