Airsal Racing Xtrem kit Minarelli horizontal LC 90cc Cylinder d=50mm and crankshaft C.45mm

Airsal Racing X‑Trem 88.3 cc kit for horizontal Minarelli scooter

The Airsal Racing X‑Trem 88.3 cc kit is designed for scooters with a horizontal Minarelli 50 cc 2-Stroke LC engine, providing a larger-displacement setup and a more responsive engine. This assembly increases displacement to 88.3 cc by means of a Ø50 mm aluminium cylinder and 45 mm stroke combined with a long-stroke crankshaft, improving power delivery in sport tuning configurations.

Kit contents

• Airsal Racing X‑Trem 88.3 cc Cylinder (01073350): 50 mm bore, 45 mm stroke, manufactured in aluminium with optimised ports for improved flow. Compatible with horizontal Minarelli LC engines.
• Airsal Racing X‑Trem Crankshaft (31073350): 45 mm stroke, 12 mm pin, reinforced and balanced for sport setups and greater durability.

Main features

• Setup for horizontal Minarelli 2-Stroke scooter engines.
• Displacement increase to 88.3 cc from 50 cc.
• Aluminium cylinder with high-flow design and optimised ports.
• Long-stroke crankshaft compatible with the 88.3 cc cylinder.
• Ideal for configurations with tuned exhaust and carburation.
• Components compatible with each other to maximise durability and performance.

Compatible scooter models

• Yamaha Aerox / Jog RR 50 cc (LC)
• MBK Nitro / Nitro Naked 50 cc (LC)
  
• Aprilia SR50 LC with horizontal Minarelli engine
• Italjet Dragster 50 cc LC
• Malaguti F15 / F12 Phantom 50 cc LC

Note: Exact compatibility depends on the engine version (LC) and may require adaptation of the exhaust, reed block, or carburation depending on the original configuration.

Recommended use

This kit is intended for sport builds and advanced tuning, where the aim is to increase power and torque compared to an original 50 cc configuration. For optimum performance, it is recommended to adjust:

• Carburettor (diameter and jets adapted to the larger displacement)
• High-performance exhaust
• Variator and rollers adjusted to the new power range.
• Ignition and secondary transmission tuning

This assembly is not intended for urban use without other complementary modifications.