Pack ITALKIT Racing 90cc Ø50mm mono segment (crankshaft stroke 44,90 with balancer) for mécaboite driving DERBI euro 3

RRD-ID:20577

A 100% complete competition pack for Derbi Euro 3 engine! Special race 44,90 with ultra reinforced vilo designed to be mounted with balancer, 90mm connecting rod, kit 90cc Ø50mm 6 transfers with large exhaust booster, studs, cylinder head high compression with increased room volume .... Clearly, a real monster of performances!

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manufacturers : ITALKIT
ITALKIT ITALKIT Price lowered!

384,90 € 384.9 tax incl.

469,90 € tax incl.


Availability: Delays of more than 20 days!

This product is not in stock but available for purchase (expect delays)


Not homologated on open road, only reserved for competition on circuit, runs, closed road.

New 2016, we announce the color: very high-end crankshaft Mazzuchelli (as the MHR BIG Bore) with 90mm forged connecting rod and Ø20mm bearings, cage in 12x17x15 mm, very high quality steel, balancing dynamic top intended to be assembled with a balancer, excellent diagrams, cylinder head high compression, excellent compression ratio, cooling studied with a semi-closed type cylinder, large diameter exhaust with boosters, 6 intake transfers with studied forms, stroke 44.90 with diameter Ø50mm piston, piston ITALKIT graphite, ....

vue Pack ITALKIT Racing 80cc Ø47,6mm (avec vilebrequin course 44,90) pour mécaboite moteur DERBI euro 3


The competition has to be held well and is far behind on the most part of maxi-kits. The only negative point of this pack, the lack of a set of clutch spring, bearings celerons and several base seals like the pack for AM6! A novelty of the great Spanish brand ITALKIT and finally available from us, this 90cc engine pack ultra complete mounts on mécaboite driving DERBI Euro 3. This set will offer you all the power sought to distinguish you during competition and win the first place.

cylindre Pack ITALKIT Racing 80cc Ø47,6mm (avec vilebrequin course 44,90) pour mécaboite moteur DERBI euro 3


As usual, the brand ITALKIT is no exception to the rule by composing this pack of the best parts on the market today. The aluminum alloy cylinder has a special heat treatment and an internal coating in nickel / silica and external chrome, giving it all its strength and reliability, foolproof! With no less than 9 lights including 6 admission transfers, 2 boosters with worked forms and finally the impressive exhaust outlet by its shape and size to the point that the exit diameter has been revised upwards and measures not less than Ø30mm, between axis of mounting for the exhaust 46 mm. Crankcase work is recommended to align the cylinder / crankcase to perfection.

piston Pack ITALKIT Racing 80cc Ø47,6mm (avec vilebrequin course 44,90) pour mécaboite moteur DERBI euro 3


That's not all, the cooling has also been completely revised and corrected to offer the best possible heat exchange and at the same time to obtain a significant performance gain, in fact less a motor runs out of steam and heats and the more the performances remain, to accompany this cylinder, a breech stud! High-end model, specially designed to offer maximum compression. The cylinder head is unfortunately not in and mounted on O-ring, the combustion chamber is hemispherical and has a polished finish very successful, smooth and clean.Room volume revised up.

culasse Pack ITALKIT Racing 80cc Ø47,6mm (avec vilebrequin course 44,90) pour mécaboite moteur DERBI euro 3


The piston Ø50mm meanwhile is not chosen at random, it is a mono segment model from ITALKIT with graphite treatment. In other words, very high quality equipment whose fame / quality is second to none. This piston is therefore equipped with a 0.80 mm thick chrome segment, thus favoring revving. Thanks to the graphite treatment, its forms and its composition, this piston has been very well designed and studied in order to offer a better thermal expansion, agreeing at the same time perfectly with this cylinder to withstand the frank revisions, brutal change of diets and extended endurance on circuit.

montage plot culasse Pack ITALKIT Racing 80cc Ø47,6mm vilebrequin course 44,90 moteur DERBI euro 3


In the end, the special crankshaft race 44,90mm and connecting rod 90mm. This model is unique and again, very successful. It is perfectly balanced and cut in the best steels on the market. Its dynamic equilibration results from the inorganic compound to tungsten carbide. This material in summary is a combination of carbon and tungsten. It is a very dense material, very resistant and very hard.A new connecting rod is also installed on this linkage, ultra reinforced model machined in the mass. Ultra light, it is really reserved for the competition!

bielle vilo Pack ITALKIT Racing 80cc Ø47,6mm vilebrequin course 44,90 moteur DERBI euro 3


It is this type of connecting rod that equips the real competition crankshafts BIDALOT or MALOSSI MHR BIG BORE and other rare vilo! Featherweight and maximum rigidity are at the rendezvous. Its lubrication is improved, the cage of small legs is increased for a better hold, treated silver and mounted on wedges anti-friction A crankshaft you will have understood, perfectly conceived and adapted to accompany this high engine, being able to support without no problem of the craziest engine speeds of up to 16 000 rpm and in combination with this cylinder and the race 44.90 mm the actual displacement is 84cc with no less than 28 hp announced by the brand on condition that perfect editing and adjustments in the rules of art!

vue vilo Pack ITALKIT Racing 80cc Ø47,6mm vilebrequin course 44,90 moteur DERBI euro 3


In summary, this pack / kit 90cc Ø50mm for your engine DERBI euro 3 will be a real asset to offer you victories in competition, runs ... and sensations guaranteed at the same time! Comes complete as presented, you can trust the photographs, they are contractual as usual.

échappement booster Pack ITALKIT Racing 80cc Ø47,6mm vilebrequin course 44,90 moteur DERBI euro 3


We recommend to accompany this pack with at least : a carburation of 26 to 28 mm for the better, a kit of admission in flexible assembly, ignition Selettra of ITALKIT with variable advance, candle cold NGK B105EGV, motor oil racing obligatory , relaxation exhaust racing big volumes essential ... followed by the assembly with instructions ITALKIT provided.

transferts Pack ITALKIT Racing 80cc Ø47,6mm vilebrequin course 44,90 moteur DERBI euro 3


This pack contains :

-Cylinder Ø50mm aluminum 6 transfers with large exhaust booster
-Piston ITALKIT graphite mono segment Ø50mm
-Cylinder head cover
-High compression cylinder head hemispherical shape, polished finish
-Segment Ø50 end chrome thickness 0,80mm
-Piston reinforced piston Ø12 X 38mm
-Piston type piston clips
Ultra-reinforced crankshaft long stroke 44,90mm super reinforced 90mm rod with balancer
-Silver needle silver Ø12X17X15mm
-Pack engine seal
-X4 Reinforced studs M7X120mm
-Installation instructions
-Autocollant

admission Pack ITALKIT Racing 80cc Ø47,6mm vilebrequin course 44,90 moteur DERBI euro 3


Technical summary :

- Work of original crankcases needed for transfers reviewed upwards
- Cooling: semi-closed liquid
- Compression Ratio: 13.91: 1
- Displacement announced: 90cc
- Actual displacement: 88cc
- Advertised power: 28CV
- Base gasket provides thickness 0.30 mm
- Recommended squish value 0.85 mm
- Volume of the chamber (breech) 6,20cc


montage notice Pack ITALKIT Racing 80cc Ø47,6mm vilebrequin course 44,90 moteur DERBI euro 3

Optionally we offer a stage 1 preparation, this preparation is a modification of the channels and exhaust light by increasing the diagrams and improving the pipe, it increases the performance of the cylinder. An improvement of the piston and skirt stocking is also included in this modification. Allow a little extra time for this preparation!

  • Bielle Taille 90mm (longue)
  • Course 44,90mm
  • Culasse: A plot (2 parties) hémisphérique
  • Cylindrée réelle 79,86cc
  • Cylindrée: 80cc
  • Diamètre (Ø): 47,6mm
  • Echappement Entre axe 46mm
  • Lumière d'échappement A booster (3 lumières)
  • Matière Aluminium
  • Nombre de segment Mono-segment (1 segment)
  • Nombre de transferts d'admission 6 transferts
  • Rapport de compression: 13,91:1
  • Refroidissement Type semi-closed
  • Squish recommandé: 0,85mm
  • Transferts a l'embase Gros transferts (travail des carters d'origine nécessaire)

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