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Pack ITALKIT Racing 80cc Ø47.6mm mono-segment (44.90mm stroke crankshaft with balancer) DERBI euro 1 & 2 special GPR engine
  • Pack ITALKIT Racing 80cc Ø47.6mm mono-segment (44.90mm stroke crankshaft with balancer) DERBI euro 1 & 2 special GPR engine

Pack ITALKIT Racing 90cc Ø50mm mono-segment (crankshaft stroke 44,90mm with balancer) engine DERBI euro 1 & 2 special GPR

K.12.145.13

A 100% complete special racing pack for Derbi Euro 1 & 2 GPR engine! Long stroke 44,90mm with ultra reinforced vilo, 90mm connecting rod, kit 90cc Ø50mm 6 transfers with large exhaust booster, studs, cylinder head input high compression with room volume increased .... In summary, a special performance engine in mono segment!

Engine preparation
Quantity

Description

Photo and more complete description to come !!! Main photo not contractual !!!

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

New 2016, we announce the color: high-end crankshaft with forged 90mm rod and Ø20mm bearings with balancer (balancer shaft / DERBI GPR), 12x16x15 cage, very high quality steels, dynamic top balancing, excellent diagrams, cylinder head high compression with incoming stud, excellent compression ratio, cooling studied with a semi-closed type cylinder, large diameter exhaust with boosters passing on lateral transfers, 6 large admission transfers with studied forms and specific architecture, race 44, 90 with Ø50mm piston diameter, VERTEX mono graphite piston graphite, ....

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 including 3 side and 2 rear, 2 boosters shaped worked passing on the side and finally the impressive exhaust outlet by its shape and size to the point that the exit diameter was reviewed on the rise and measures no less than Ø30mm, between fixing pin for the exhaust 46 mm.

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 engine pack 90cc ultra complete mounts on mécaboite driving DERBI Euro 1 & 2 special GPR. This set will give you all the power you need to distinguish yourself during competition and take first place.

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 in-line to optmise alignment with the cylinder and mounted on O-ring, the combustion chamber is hemispherical and has a polished finish very successful, smooth and clean.Room volume revised upward.

The piston Ø50mm meanwhile is not chosen at random, it is a mono segment model from VERTEX with graphite treatment. In other words, the very high quality material whose fame / quality is second to none. This piston is equipped with a thin chrome segment thickness 1 mm thus promoting the revving but especially the torque. 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.

In the end, the crankshaft special stroke 44,90mm and 90mm rod with balancer (balance shaft / DERBI GPR). This model is unique and again, really succeeds. 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!

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 up to 16 000 rpm and in combination with this cylinder and stroke 44.90, the actual displacement is 88cc of torque and power provided a perfect fit and adjustments in the rules of the art!

Clearly, this pack / kit 90cc Ø50mm for your engine DERBI euro 1 & 2 GPR special will be a must to offer you guaranteed victories and sensations guaranteed key!

We recommend you to accompany this pack with at least : a carburation of 26 to 28 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, escape exhaust racing big volumes essential ....

This pack contains :

-Cylinder Ø50mm aluminum 6 transfers with large exhaust booster
-GINTEX piston graphite mono segment Ø50mm
-Cylinder head cover
-High compression cylinder head hemispherical shape, polished finish
-Segment Ø50mm end chrome thickness 1 mm
-Piston reinforced piston Ø12 X 37mm
-Piston type piston clips
Ultra-reinforced crankshaft with long stroke balancer 44,90mm super reinforced 90mm rod
-Silver needle silver Ø12X16X15mm
-Pack engine seal
-X4 Reinforced studs M7X120mm
-Installation instructions
-Autocollant

Technical summary:

- Work of original crankcases needed for transfers reviewed upwards
- Cooling: semi-closed liquid
- Compression ratio: nc
- Displacement announced: 90cc
- Actual displacement: 88cc
- Advertised power: nc
- Base gasket provides thickness nc
- Recommended squish value nc
- Volume of the chamber (breech) nc

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

This high engine mounts on the 50cc motorcycles with gearboxes equipped with the DERBI Euro1 and Euro2 engine:

BULTACO Astro enduro 50cc
BULTACO Lobito supermotard 50cc

DERBI GPR 50 Nude before 2004 (EBS050)
DERBI GPR 50 Racing before 2004 (EBS050)
DERBI GPR 50R Replica year 2001 to 2004
DERBI GPR 50cc year 1998 to 2001
DERBI Senda 50cc before 2000 (tubular frame)
DERBI Senda 2000 50cc before 2004 (perimeter frame) Euro2
DERBI Senda DRD supermotard before 2000 (tubular frame)
DERBI Senda DRD supermotard before 2004 (perimeter frame) Euro 2
DERBI Senda Enduro before 2000 (tubular frame)
DERBI Senda R DRD Enduro before 2000 (tubular frame)
DERBI Senda R DRD Enduro front 2004 (perimeter frame) Euro2
DERBI Senda SM before 2000 (tubular frame)
DERBI Senda SM before 2004 (perimeter frame) Euro 2
DERBI Senda X-Race 2000 before 2004 (perimeter frame) Euro 2
DERBI Senda X-Race Trail before 2000 (tubular frame)
DERBI Senda X-Trem Enduro before 2000 (tubular frame)
DERBI Senda X-Trem Enduro front 2004 (perimeter frame) Euro 2
DERBI Senda X-Trem SM before 2000 (tubular frame)
DERBI Senda X-Trem SM before 2004 (perimeter frame) Euro 2

GILERA GP Replica 50cc
GILERA GSM 50cc
GILERA HAK Euduro 50cc
GILERA RCR Euduro 50cc (tubular frame)
GILERA SMT SM 50cc (tubular frame)
GILERA Sioux Enduro 50cc
GILERA Zulu Enduro 50cc

And many other models ...

Product Details
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