Malossi MHR TEAM aluminum thermal unit REPLICA D 50 77cc LC dismountable head

The Malossi MHR TEAM REPLICA Ø 50 thermal unit is a high-quality and high-performance product, ideal for riders who want to participate in National and European Trophies. Made with high-quality materials, such as a special alloy of aluminum with a high percentage of silicon and titanium, it guarantees high resistance to deformation at high temperatures. Thanks to a special heat treatment, the thermal unit retains its mechanical and dimensional characteristics even at temperatures up to 250°C.

The cylinder has been precisely machined on CNC machines, ensuring very tight dimensional and shape tolerances. In addition, the internal surface has been treated with a silicon carbide coating on a nickel matrix, which gives the cylinder a very high hardness and remarkable wear resistance. The exhaust and transfer diagrams have been specially designed and made for competition, with the help of Malossi technicians who have tested the thermal unit on static engine test benches and on race tracks.

The piston is made with a special alloy with a high percentage of silicon, guaranteeing resistance to heat and deformation even at the highest temperatures. In addition, the external tin coating reduces friction. The structure of the piston is reinforced to withstand the stresses imposed by competition, but at the same time it is lightweight to reduce inertia forces.

The ring is made of high-strength spheroidal graphite cast iron, with a hard chrome coating on the contact surface to prevent wear.

The brand new Malossi detachable head has been designed to ensure the dissipation of heat generated by a high specific power engine intended for competition. Made of a special alloy of heat-treated aluminum with a high silicon content, the head is directly fixed to the cylinder barrel and is bathed in coolant over its entire outer surface, ensuring a large heat exchange area. In addition, being independent of the outer walls, the head can follow the cylinder's expansions. The combustion chamber is precisely made using CNC machines, ensuring very precise dimensional and shape tolerances. The detachable head system is completed with a cover that ensures the sealing of the coolant. The geometry and squish of the combustion chamber have been specially designed for use in the Scooter Speed Trophy and Scooter Cross Trophy.

The Malossi MHR TEAM REPLICA Ø 50 thermal unit is the perfect choice for riders looking for a high-quality and high-performance product for competition.