MHR THERMAL GROUPS

TECHNICAL FEATURES

CYLINDER

Material: special aluminum alloy with a high percentage of silicon and titanium which guarantees high non-deformability at high temperatures.
Heat treatment: special tempering and stabilization that gives the material high tenacity and rigidity, ensuring the consistency of the mechanical and dimensional characteristics up to temperatures of 250° C.
Chip removal processes: carried out on numerically controlled work centres with extremely tight dimensional and shape tolerances (cylindricity, roundness, perpendicularity).
Internal surface coating: made with silicon carbide coating on nickel matrix, heat treated which guarantees a very high hardness of approximately 600 HV0.1/5 with a very high resistance to wear.
Internal cylinder processing: with special machines that allow obtaining a very high level of finishing on the sliding walls with roughness intersection according to the angles imposed during the design phase (polishing).
Exhaust and transfer diagrams: designed and created specifically for competition. The definition of the exhaust and transfer diagrams required considerable effort by our technicians on static engine test benches and on the race tracks where the trophy takes place.
PISTON

Material: special alloy with a very high percentage of silicon to ensure extremely high heat resistance and non-deformability when temperatures vary.
External coating: tin coating which guarantees a very low friction coefficient.
Structure: reinforced to withstand the stresses imposed on a top-level competition cylinder kit, but at the same time retains a notable lightness in order to reduce inertial forces.
Band: single band with rectangular section in 1 mm spheroidal cast iron with hard chrome plating on the external surface.
SEGMENTS

Segments in high mechanical resistance spheroidal cast iron with wear-resistant hard chrome coating on the contact surface, ground and lapped.
HEAD

Material: Special aluminum alloy with high heat exchange coefficient.
Geometry of heat exchange surfaces recalculated and increased.
Completely redesigned combustion chamber for high compression ratio with very high turbulence.
Processing on numerically controlled machines.
Compatibility Table

MINARELLI HORIZONTAL
APRILIA AREA 51 50 2T LC
APRILIA SR NETSCAPER 50 2T LC (MINARELLI)
APRILIA SR RACING 50 2T LC (MINARELLI)
APRILIA SR REPLICA 50 2T LC <-1999 APRILIA SR STEALTH 50 2T LC (MINARELLI) APRILIA SONIC 50 2T LC APRILIA GULLIVER 50 2T LC APRILIA RALLY 50 2T LC (MINARELLI) APRILIA AREA 51 50 2T LC APRILIA SR NETSCAPER 50 2T LC (MINARELLI) APRILIA SR RACING 50 2T LC (MINARELLI) APRILIA SR REPLICA 50 2T LC <-1999 APRILIA SR STEALTH 50 2T LC (MINARELLI) APRILIA SONIC 50 2T LC APRILIA GULLIVER 50 2T LC APRILIA RALLY 50 2T LC (MINARELLI) BENELLI 491 SPORT 50 2T LC (MINARELLI) BENELLI K2 50 2T LC BENELLI 491 SPORT 50 2T LC (MINARELLI) BENELLI K2 50 2T LC BETA EIKON 50 2T LC BETA ARK 50 2T LC BETA EIKON 50 2T LC BETA ARK 50 2T LC GARELLI GSP 50 2T LC EURO 2 (1PE40MB) GARELLI GSP 50 2T LC EURO 2 (1PE40MB) ITALJET DRAGSTER 50 2T LC ITALJET DRAGSTER 50 2T LC MALAGUTI F12 DIGIT KAT-PHANTOM 50 2T LC MALAGUTI F12 DIGIT KAT-PHANTOM 50 2T LC EURO 2 MALAGUTI F12 R LC 50 2T LC EURO 2 MALAGUTI F12-PHANTOM 50 2T LC MALAGUTI F15 FIREFOX 50 2T LC MALAGUTI F12 DIGIT KAT-PHANTOM 50 2T LC MALAGUTI F12 DIGIT KAT-PHANTOM 50 2T LC EURO 2 MALAGUTI F12 R LC 50 2T LC EURO 2 MALAGUTI F12-PHANTOM 50 2T LC MALAGUTI F15 FIREFOX 50 2T LC MBK NITRO 50 2T LC MBK MACH G 50 2T LC MBK NITRO 50 2T LC MBK MACH G 50 2T LC OVER THOR 50 2T LC 2013-> (LJ1PE40MB)
OVER THOR 50 2T LC 2013-> (LJ1PE40MB)
YAMAHA AEROX 50 2T LC EURO 0-1
YAMAHA AEROX 50 2T LC EURO 2
YAMAHA JOGRR 50 2T LC EURO 2
YAMAHA AEROX 50 2T LC EURO 0-1
YAMAHA AEROX 50 2T LC EURO 2
YAMAHA JOGRR 50 2T LC EURO 2
Code: 318559
The Product may be reserved exclusively for competitions in places specially designated for such purposes according to the provisions of the competent sports authorities. We decline all responsibility for improper use.
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Billaricambi staff