Malossi MHR Testa Rossa 47.6 mm Cylinder Kit (70 ccm) for Minarelli LC – High End Racing with brutal torque

The Malossi MHR Testa Rossa Cylinder Kit 47.6 mm is an uncompromising 70ccm High End Racing cylinder for Minarelli LC (water cooling). As a further development of the MHR Team cylinder, the Testa Rossa comes with 7 transfer ports and a large, 2-part exhaust port – made for maximum performance with clean tuning.

Particularly exciting: In contrast to many other high-end racing cylinders, the Testa Rossa (Team II) runs with a Team exhaust system in a lower RPM range and delivers an extreme torque potential. The modular, two-part cylinder head additionally supports better heat dissipation. With appropriate tuning, power values over 20 hp are possible.

The kit is clearly designed for racing: The crankcase must be bored or milled so that the stub of the cylinder base can be inserted into the housing. Furthermore, the cylinder can only be operated with a crankshaft with a 12 mm piston pin to reliably absorb the enormous forces.

The gasket set contains a comprehensive assortment of cylinder base gaskets. This allows you to optimally influence the compression ratio. All parts required for assembly are included in the kit.

OEM no. for comparison purposes: 3115390

Features & Benefits

• High End Racing cylinder kit from Malossi (MHR Testa Rossa)
• Bore: 47.6 mm
• Displacement: 70 ccm
• 7 transfer ports for strong scavenging and performance
• Large 2-part exhaust port (split)
• Modular (two-part) cylinder head for improved heat dissipation
• Extreme torque potential – with Team exhaust system in the lower RPM range
• Over 20 hp possible (with corresponding tuning)
• Gasket set with many cylinder base gaskets for adjusting the compression ratio
• Assembly parts fully included

Important Installation Notes

• Modify crankcase: must be bored or milled (cylinder base stub is inserted into the housing)
• Only compatible with crankshafts for 12 mm piston pins

Compatibility (Minarelli LC / Water Cooled)

Fits many vehicles with Minarelli LC (water cooling), such as Yamaha Aerox 50, MBK Nitro 50 and Aprilia SR 50 LC – but also other models with the corresponding engine.

Vehicle List (Excerpt)

• Adly: 50 Her Chee
• Aprilia: Area 51 50, Rally 50 LC Water, Gulliver 50 LC Water, SR 50 LC Water 1994-1997, Sonic 50 LC Water, SR 50 Racing LC Water 2000
• Benelli: 491 RR 50 Minarelli engine 2003, 491 RR Replica 50 Minarelli engine 2003, 491 Sport 50 Minarelli engine 2003, K2 50 LC water
• Beta: Eikon 50, Ark 50 LC Water
• Italjet: Dragster 50
• KTM: Ark 50 LC Water
• MBK: Nitro Naked 50 2013, Nitro 50 1999, Mach G 50 LC Water, Nitro 50 Cat 2003
• Malaguti: F12 Phantom R 50 AC Air, F15 Firefox LC Water 2004, F12 Phantom 50 LC Water 2000-2004
• Yamaha: Aerox 50 1999, Aerox R 50 2013, Jog RR 50 LC Water, Aerox 50 Cat 2003, Aerox R 50 Naked 2013

Part Numbers

• Item number: M3115390
• OEM / Comparison number: 3115390