This new “MAXI KIT” provides advanced technology and high performance for those who wish to upgrade engine power. It combines the Ø 49.5 cylinder-head unit featuring a split head with a special plain cap connecting rod kit featuring 44 mm stroke and dedicated balancing for a total piston displacement of 85 cc. The distinguishing feature of this kit it its torque output, up to 12.5 Nm at about 10,250 rpm, guaranteed to deliver superior acceleration, pick-up and driveability.

CYLINDER SPECIFICATIONS

• Bore  49,5 mm
• Stroke  44 mm
• Displacement  85 cm3
• Squish  0.9-1.1 mm
• Compression ratio Geometric 14,7:1
• Compression ratio Effective 8:1
• Timing diagram Exhaust 191°
• Timing diagram transfer ports 132°
• Recommended spark advance: 16° (1 mm before of TDC)