Cylinder Kit Malossi I-Tech 70cc (Bws/Zuma) Minarelli 4T

This 4-stroke cylinder from Malossi is made of aluminum and then covered with a Nickasil coating. It has a displacement of 66.3cc thanks to the use of a 44mm diameter piston on its original stroke which is 43.6mm. In order to best use the capabilities of this cylinder, we recommend the use of a Malossi Force Master CDI box in addition (5518429).

Cylinder

• Bore: Ø 44 mm
• Stroke: 43.6 mm
• Cylinder capacity: 66.3
• Compression ratio: 12.01
• Material: primary aluminum alloy with high silicon content, hardened and tempered, cylinder liner with application of silicon carbides in a galvanic nickel matrix and cross-smoothing by two diamond passes, with very strict tolerances
• Machining: by high-precision CNC machine tools
• Cylinder-piston couplings with 0.05 mm coupling tolerance
• Recalculated and enlarged heat exchange surfaces

Piston

• Extra compact three-segment
• Material: special high-silicon aluminum alloy with low thermal expansion with tin application on the sliding walls
• Machining by CNC machine tools
• Lightened and reinforced
• Enlarged heat exchange surfaces

Segments

• Specials with high sliding and very high mechanical resistance
• 1st compression segment in nitrided and chromed steel
• 2nd segment in special cast iron
• Three-piece scraper segment made of special steel, chrome-plated
  
  

REPLACEMENT PARTS
Cylinder Gasket: 1118664B
Piston Pin: 2313862B
Piston Ring: 3513658
Circlip: 3612541

PISTONS
Piston Ø44 (0): 3413581
Piston Ø44 (00): 3413581.00
Piston Ø44 (A): 3413581.a0
Piston Ø44 (AA): 3413581.aa
Piston Ø44 (B): 3413581.b0
Piston Ø44 (BB): 3413581.bb
Piston Ø44 (C): 3413581.c0
Piston Ø44 (CC): 3413581.cc