Derbi Mulhacen 125 [2007-2013] - H2O cylinder-piston kit - Ø67mm

MALOSSI H2O cylinder-piston kit with Ø 67 mm

This H2O cylinder-piston kit from MALOSSI is designed for the Derbi Mulhacen 125 from 2007-2013. The cylinder has a bore of Ø 67 mm and is machined on high-precision CNC machines. The piston-cylinder fit is 0.05 mm and the compression ratio is 12:1.

Cylinders and heat transfer

• High-silicon, refined and hardened aluminum alloy
• Inner liner with silicon carbide coating on a galvanic nickel matrix
• Cross-smoothing in two diamond steps while maintaining very tight tolerances
• Recalculated and extra large heat exchange surfaces
• Machining on high-precision CNC machines

The combination of a defined fit, coated inner liner and precise surface processing forms the technical basis of this cylinder-piston system.

Pistons and piston rings

The super compact piston has three segments. It consists of a special aluminum-silicon alloy with low thermal expansion. A tin additive is used on the sliding surfaces. The piston, machined on CNC machines, is weight-reduced, reinforced and has extra-large heat exchange surfaces.

• First compression ring made of nitrided and chrome-plated steel
• Second piston ring made of special steel
• Three-piece oil scraper made of alloyed and chrome-plated special steel
• Special piston rings with a large stroke and extremely high mechanical strength

Vehicle assignment

• Derbi Mulhacen 125, built between 2007 and 2013

Factual usage information

The product is intended exclusively for competitions at the designated venues and in accordance with the regulations of the relevant sports associations. No liability is assumed for improper use.