ALUM-CYL. Ø 44 pin Ø 10 H2O 4-stroke

TECHNICAL FEATURES

Cylinder

• Bore : Ø 44 mm
• Stroke : 43.6 mm
• Displacement : 66.3 cc
• Compression ratio : 12.01
• Material : primary aluminium alloy with a high content of hardened and tempered silicon, cylinder liner with silicon carbide coating in a galvanic nickel die and crossed smoothing with two diamond passages with very limited tolerances
• Machining: on machine tools with high precision numerical control
• Cylinder-piston connection with an allowance of 0.05 mm
• Recalculated and upgraded heat exchange surfaces

Piston

• Ultra compact with 3 rings
• Material : special aluminium alloy with high silicon content, low thermal expansion and a tin facing on the sliding surfaces
• Machining on machine tools with numerical control
• Lightened and reinforced
• Upgraded heat exchange surfaces

Piston rings

• Special rings with high sliding ease and very high mechanical resistance
• I° ring compression in nitrided and chromium steel
• II° special cast iron ring
• Three piece scraper ring made of chromium-plated special steel alloy

 
  To be installed exclusively with Force Master control unit 5518370
  YAMAHA AEROX 4 50 ie 4T LC euro 4 2018-> (A333E)
  YAMAHA NEO'S 4 50 ie 4T LC euro 4 2019->

  To be installed exclusively with Force Master control unit 5518429
  MBK NITRO 50 ie 4T LC euro 2
  MBK OVETTO UBS 50 ie 4T LC euro 2
  YAMAHA AEROX 4 50 ie 4T LC euro 2 (A326E)
  YAMAHA C3 [XF] 50 ie 4T LC euro 2 (A311E)
  YAMAHA GIGGLE [XF] 50 ie 4T LC euro 2 (A311E)
  YAMAHA NEO'S 4 50 ie 4T LC euro 2 (A316E)
  YAMAHA VOX [XF] 50 ie 4T LC euro 2 (A311E)
  YAMAHA ZUMA FX 50 ie 4T LC

Products reserved exclusively for racing in specifically designed locations according to the provisions of the competent sporting authorities. We disclaim all liability for improper use