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Cylinder / piston without cylinder head replacement kit 80cc Ø47,6mm, 6 transfers, large exhaust to boost .... To accompany a long-stroke crankshaft 44.90mm and its head high specific compression pad.
Not approved on road open only for competition on the track, road closed.
This cylinder, cylinder without piston 80cc Ø47,6mm mounts on mécaboite driving DERBI euro 1 & 2, the replacement pack racing 80cc with long stroke crankshaft 44.90 mm and the cylinder head high compression pad. To accompany so the race 43 ITALKIT crankshaft and connecting rod 90mm. in combination with the 44,90 mm stroke, the actual displacement is 79,90cc. 
The cylinder is made of aluminum alloy and has a specific heat treatment and internal coating niquel / silica and external chrome, giving it its strength and reliability. With its 6 admission transfers including 4 side and three in the back, two boosters from the forms worked on transfers and finally the huge exhaust outlet by its shape and size to the point that the outlet diameter has been revised upward and greatly expanded! 
Cooling also been completely revised and corrected in order to provide the best possible heat exchange and at the same time to get a performance gain consequently, indeed least one engine runs out of steam and heated and performance remain present. the Ø47,6mm piston meanwhile is not chosen at random, it is a model mono segment with graphite treatment. 
Suffice to say the material of the highest quality whose reputation / quality is second to none. The piston is equipped with a chrome end segment 1 mm thickness favoring the ramp-up. Thanks to the graphite processing, forms and composition, this piston was very well designed and studied in order to offer better thermal expansion, agreeing at the same time perfectly with this cylinder to support the free times, brutal regime change and prolonged endurance of circuit.
Delivered complete as presented, you can rely on photographs, they are binding as we usually do. This cylinder / piston will be ideal when worn or breaks and replace your old high engine without any change. 
We recommend to accompany this pack with minimum: a carburizing 24-28 for the better, a flexible mounting kit admission, crankshaft ultra reinforced ITALKIT Competition 44.90 race / 90mm rod, cylinder head high compression pad ITALKIT, ignition Selettra home ITALKIT with variable advance, cold NGK B105EGV, compulsory motor racing oil, relaxing racing exhaust large volumes needed ....
contains:
-cylinder Ø47,6mm aluminum 6 transfers with large exhaust boost
-piston Graphite mono segment Ø47,6mm
-Segment Ø47,6 end chromed 1mm thick
Axis-reinforced piston Ø12 X 37mm
Crab-like piston -Clips
-pack Engine gasket
-Installation instructions
-Autocollant
Reference: VM.12.4
Ideal so that your clutch does not slip, this set of springs has exceptional quality but also a very low price.
Reference: 6204 TB.P63
A bearing that will support all your most advanced configurations. Real competition piece!
Reference: ESP.07.125.4
The strongest with MALOSSI, specially lengthened for high engines with wedges for stroke or long connecting rod, withstand extreme tightening torques. Amply support 25nm (2.25 mkg)!
Reference: VJ.12.15
A high quality seal pack for trouble-free refurbishment for many cylinder models.
Reference: CU.12.51.1
Ideal in case of breakage or sheer for a refurbishment of your high engine DERBI euro 1 and 2.
Reference: SE.476.08.IE
High quality segment, ideal for maintaining your high engine kit or pack ITALKIT 70 and 80cc 47,6mm in diameter.
Reference: RST.222
A special competition needle cage, silver treated from ITALKIT in Ø12X17X15mm.
Reference: PI.02.476A.V
Complete replacement graphite single segment piston, ITALKIT top-of-the-range model for high engine kit in long stroke on DERBI engine.
Reference: CU.12.92.5
Ideal in case of breakage or wear, high quality cylinder head stud, ITALKIT Competition model for 80cc Ø47.6 mm pack and kit 44.90 mm long stroke on DERBI euro 1, 2 and 3 & 4.
Reference: K.12.145.20
A competition pack special 100% complete for engine Derbi euro 1 & 2! Long race with 44.90 ultra strengthened vilo, connecting rod 90mm, 80cc kit Ø47,6mm 6 transfers with big exhaust booster, studs, stud high compression cylinder head with increased volume of room .... Clearly, an engine with guaranteed performance!
Reference: CU.12.81
Stud bolt (decomposable two parts) complete replacement, special for the top motor racing 44.90mm, 80cc on Derbi euro 1 & 2.
Reference: CB.12.145.2
Crank special long race 44,90mm upscale Mazzuchelli, machined forged connecting rod in 90mm mass ... with needle cage silver treated Ø12 mm. Dynamic balancing perfect!
Reference: CK.12.755.GR
Top racing engine DERBI euro 1 & 2! Special race 44,90 mm, 80cc kit Ø47,6mm, 6 transfers, large exhaust boosters .... A concentrate of performance, accompanied by a long-stroke crankshaft 44.90 mm.
Reference: 11000974
New in 2014, a real powerhouse for DERBI euro 1 & 2.
Reference: CK.12.755.GR
Top racing engine DERBI euro 1 & 2! Special race 44,90 mm, 80cc kit Ø47,6mm, 6 transfers, large exhaust boosters .... A concentrate of performance, accompanied by a long-stroke crankshaft 44.90 mm.
Reference: CK.12.749.GR1
Top racing engine DERBI euro 1 & 2! 43 mm special race kit 80cc Ø47,6mm, 6 transfers, large exhaust boosters .... A real monster performance, accompanied by a crankshaft long race 43mm.
Reference: CI.12.749.GR
Cylinder / piston without cylinder head replacement kit 80cc Ø47,6mm, 6 transfers, large exhaust to boost .... To accompany a 43mm long stroke crankshaft and its breech entering high specific compression pad.
Cylinder / piston without cylinder head replacement kit 80cc Ø47,6mm, 6 transfers, large exhaust to boost .... To accompany a long-stroke crankshaft 44.90mm and its head high specific compression pad.
