Cylinder

Bore: 67mm
Stroke: 47mm
Displacement: 166cc
Compression ratio: 12:1
Material: primary aluminium alloy with a high percentage of hardened and tempered silicon, cylinder liner with silicon carbide coating in an electroplated nickel matrix and cross-smoothing with two diamond passages with very tight tolerances
Machining: on machine tools with high-precision numerical control
Tolerance cylinder-piston: 0.05mm
Improved heat exchange because surfaces are recalculated.

Piston

Piston pin: 15mm
Piston is ultra compact with 3 rings.
Material: special aluminium alloy with high silicon content, low thermal expansion and a tin layer on the sliding surfaces
Special rings with high sliding capacity and very high mechanical strength.
I° compression ring made of nitrided and chromium-plated steel
II° special ring in cast iron three-piece scraper ring in chrome-plated special steel alloy

CDI FORCE MASTER 2 - code 5515327

ECU engine control unit setting
±20% at min/medium/max
Speed limiter: +1000rpm
4 different maps:
Curve 0: original cylinder, original camshaft, Malossi exhaust system with DB killer
Curve 1: Malossi cylinder, original camshaft, original exhaust system
Curve 2: Malossi cylinder, original camshaft, Malossi exhaust system with DB killer
Curve 3: Malossi cylinder, original camshaft, Malossi exhaust system with DB killer, Malossi air filter