Price

454.66€ -10% 409.19€

Available Sold and shipped by: Malossi Spa

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aluminium cylinder kit ø 50 h2o mhr team replica modular-head

Code: 3113564

Model: derbi gpr nude 50 2t lc 2006-> (d50b0)

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Description

CYLINDER KIT MHR modular head

The new MHR MODULAR-HEAD CYLINDER KITS are the natural evolution of the MHR MALOSSI line. The result of the research of its engineers, they have been a decisive factor in the victories of the official national and European teams in the cross and speed trophies. Malossi is happy to be able to guarantee that all riders taking part in the coming season National and European Trophies will have a product offering excellent quality and performance.

CYLINDER

  • Material: special aluminium alloy with high percentage of silicon and titanium that guarantees exceptional strain strength even at high temperatures.
  • Heat treatment: special quenching and stabilising treatment that gives the material increased toughness and strength, guaranteeing that mechanical and size specifications will remain unaltered for temperatures of up to 250 °C.
  • Chip-forming machining: carried out on NC machining centres with extremely-limited size and shape tolerance (roundness, perpendicularity).
  • Inner surface coating: effected using silicon carbide on a nickel matrix with heat treatment that guarantees extreme hardness (around 600 HV0, 1/5) and excellent resistance to wear.
  • Internal machining of cylinder: using special machines that allow a degree of finish on the cylinder barrel walls whose roughness corresponds with the angles set at the design stage (grinding process using special stone).
  • Port and exhaust diagrams: designed and manufactured especially for racing. The definition of the port and exhaust diagrams has requested considerable effort on the part of our engineers both on engine test stands and the circuits on which the trophy is held.

PISTON

  • Material: special aluminium alloy with a very high percentage of silicon and titanium that guarantees both excellent heat resistance and strain strength upon temperature variation.
  • External coating: graphite coating that guarantees a very low friction coefficient.
  • Structure: reinforced in order to offer resistance to the stress suffered by cylinder units used for top-level competition, but at the same time light enough to reduce inertial force.

PISTON RING

  • Ring in very strong modular cast iron with ground, wear-resistant, hard chrome metal-spray coating on the contact surface.

HEAD

The new Malossi modular head has been specially created to guarantee elimination of the notable amount of heat that develops in an engine with a very high specific horsepower designed for racing.
It consists of a head in special hardened and tempered aluminium alloy with high silicon content that is fixed directly to the cylinder barrel. It is lapped over its entire outer surface by the coolant thus guaranteeing a very large heat-exchange surface. In addition, being unattached to the internal walls it is free to follow the expansion of the cylinder.
The combustion chamber is entirely manufactured using numerical control machines in order to ensure shape and size tolerances to within just one hundredth of a millimetre.
The modular head system is completed by a cover that closes off the upper part of the cylinder, thus guaranteeing that the coolant is fully sealed.
The geometry and cross-section of the combustion chamber for this cylinder unit have been specially designed for use in the Scooter Speed Trophy and Scooter Cross Trophy.

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

Compatible brands and models

Brand Model
APRILIA APRILIA RS 50 2T LC euro 2 2006-> (DERBI D50B1)
APRILIA APRILIA RS 50 2T LC euro 4 2018-> (D50B0)
APRILIA APRILIA RS4 50 2T LC euro 2 (DERBI)
APRILIA APRILIA RX 50 2T LC 2007-> (DERBI D50B0)
APRILIA APRILIA RX FACTORY 50 2T LC euro 4 2018-> (D50B0)
APRILIA APRILIA SX 50 2T LC 2007-> (DERBI D50B0)
APRILIA APRILIA SX 50 2T LC euro 4 2018-> (D50B0)
APRILIA APRILIA SX FACTORY 50 2T LC euro 4 2018-> (D50B0)
DERBI DERBI Senda DRD PRO R 50 2T LC (D50B0)
DERBI DERBI Senda DRD PRO SM 50 2T LC (D50B0)
DERBI DERBI Senda DRD RACING R - SM 50 2T LC (D50B0)
DERBI DERBI Senda EVO SM 50 2T LC (D50B0)
DERBI DERBI GPR NUDE 50 2T LC 2006-> (D50B0)
DERBI DERBI GPR RACING 50 2T LC 2006-> (D50B0)
DERBI DERBI GPR R 50 2T LC euro 2 2012->
DERBI DERBI Senda LIMITED SM 50 2T LC euro 4 2018-> (D50B0)
DERBI DERBI Senda X-RACE R - X-RACE SM 50 2T LC (D50B0)
DERBI DERBI Senda X-TREME R - X-TREME SM 50 2T LC (D50B0)
DERBI DERBI Senda X-TREME SM 50 2T LC euro 4 2018-> (D50B0)
GILERA GILERA DRIFTING 50 2T LC euro 4 2018-> (D50B0)
GILERA GILERA RCR - SMT 50 2T LC (DERBI D50B0)
GILERA GILERA RCR 50 2T LC euro 4 2018-> (D50B0)
GILERA GILERA SMT 50 2T LC euro 4 2018-> (D50B0)
DERBI DERBI Senda X-TREME R 50 2T LC euro 4 2018-> (D50B0)
DERBI DERBI Senda RACING SM 50 2T LC euro 4 2018-> (D50B0)

Spare parts

Product name Code Price
complete cylinder gasket set ø 50 (multi-thickness) (for derbi d50b0/1 engines) complete cylinder gasket set ø 50 (multi-thickness) (for derbi d50b0/1 engines) 1113013b 15.81€ Cart
bolt kit with bleed holder bolt kit with bleed holder 1913107 15.25€ Cart
pin ø 12x08x40 for piston pin ø 12x08x40 for piston 2312731 15.01€ Cart
2t ø 50 piston size 0 with pin ø 12 and 1 chromed rectangular ring size 0 2t ø 50 piston size 0 with pin ø 12 and 1 chromed rectangular ring size 0 3413047 88.57€ Cart
2t ø 50 piston size 0 with pin ø 12 and 1 chromed rectangular ring size 00 2t ø 50 piston size 0 with pin ø 12 and 1 chromed rectangular ring size 00 3413047.00 88.57€ Cart
2t ø 50 piston size 0 with pin ø 12 and 1 chromed rectangular ring size a 2t ø 50 piston size 0 with pin ø 12 and 1 chromed rectangular ring size a 3413047.a0 88.57€ Cart
2t ø 50 piston size 0 with pin ø 12 and 1 chromed rectangular ring size aa 2t ø 50 piston size 0 with pin ø 12 and 1 chromed rectangular ring size aa 3413047.aa 88.57€ Cart
2t ø 50 piston size 0 with pin ø 12 and 1 chromed rectangular ring size b 2t ø 50 piston size 0 with pin ø 12 and 1 chromed rectangular ring size b 3413047.b0 88.57€ Cart
2t ø 50 piston size 0 with pin ø 12 and 1 chromed rectangular ring size bb 2t ø 50 piston size 0 with pin ø 12 and 1 chromed rectangular ring size bb 3413047.bb 88.57€ Cart
2t ø 50 piston size 0 with pin ø 12 and 1 chromed rectangular ring size c 2t ø 50 piston size 0 with pin ø 12 and 1 chromed rectangular ring size c 3413047.c0 88.57€ Cart
2t ø 50 piston size 0 with pin ø 12 and 1 chromed rectangular ring size cc 2t ø 50 piston size 0 with pin ø 12 and 1 chromed rectangular ring size cc 3413047.cc 88.57€ Cart
2t ø 50 piston size 0 with pin ø 12 and 1 chromed rectangular ring size d 2t ø 50 piston size 0 with pin ø 12 and 1 chromed rectangular ring size d 3413047.d0 88.57€ Cart
2t ø 50 piston size 0 with pin ø 12 and 1 chromed rectangular ring size dd 2t ø 50 piston size 0 with pin ø 12 and 1 chromed rectangular ring size dd 3413047.dd 88.57€ Cart
piston ring ø 50x0.8 rectangular chrome-plated steel piston ring ø 50x0.8 rectangular chrome-plated steel 3518144b 17.81€ Cart
pin clip ø 12x1 c-shaped pin clip ø 12x1 c-shaped 36 4450 0.29€ Cart
cylinder head cover cylinder head cover 38 9513 76.86€ Cart
aluminium modular cylinder head ø 50 aluminium modular cylinder head ø 50 3812387 83.01€ Cart

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aluminium cylinder kit ø 50 h2o mhr team replica modular-head

409.19€
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