TOPPE MAXI KIT IRON D.50 86CC DERBI D50B

This new “MAXI KIT” represents a further technical and performance evolution for those who want to increase their engine’s power. It has been created by combining the Ø 50 piston cylinder assy with disassembled head with a special connecting rod assy with solid plates, 44 mm stroke and specifi c balance, thus obtaining a full displacement of 86 cc.

The main characteristic of this kit is the high torque value it develops, ensuring acceleration, pick-up and driveability never experienced before.

CYLINDER SPECIFICATIONS

Bore  50 mm

Stroke  44 mm

Displacement  86.35 cm3

Squish  0.9-1.1 mm

Compression ratio Geometric 14:1

Compression ratio Effective 8.4:1

Distribution diagram Exhaust 192°

Distribution diagram Transfers 192°

Recommended spark advance: 16° (1 mm before of TDC)