Not approved on road open only for competition on the track, runs, road closed. Installs only Derbi GPR.
New in 2014, the color is announced: High quality crankshaft with forged 90mm rod and brought to Ø20mm with balancer (balancer shaft / Derbi GPR), cage 12x16x15, high-quality steels, dynamic balancing at top, excellent diagrams, breech high compression pad entering, great compression ratio, cooling studied with a semi-closed type cylinder, large diameter exhaust with boosters passing on lateral transfers, 6 large intake transfers with specific forms and studied architecture, race 43, 00 with Ø47,6mm diameter piston, piston VERTEX graphite ....
As usual, the ITALKIT brand is no exception to the rule in the pack of current best parts on the market. The aluminum alloy cylinder has a specific heat treatment and internal coating niquel / silica and external chrome, delivering it its strength and reliability, foolproof! Featuring no less than 9 lights including 6 transfers of admission including 3 side and 2 rear, 2 boosters shapes worked on from the side and finally the impressive exhaust outlet by its shape and size to the point that the outlet diameter has been reviewed upward and measure no less than Ø30mm between fixing axis for exhaust 46 mm.
Competition has only to behave themselves and is far behind the most-hand maxi kits. Only downside of this pack, the absence of a clear set clutch, bearings Celerons and several joints of base plate as the pack for AM6! A novelty of the great Spanish brand ITALKIT and finally available to us, this ultra complete 80cc engine pack mounts on mécaboite driving DERBI euro 1 & 2 special GPR. This set will give you all the power sought to distinguish when you compete and win first place.
That's not all, 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 less engine runs out of steam and heat and performance remain present. to accompany this cylinder, a racing stud bolt! Top model, specially designed to provide maximum compression. The head pad is used for optmiser alignment with the cylinder and mounted O-ring, the combustion chamber is hemispherical in shape and has a very successful polished, smooth and clean. Volume chamber revised upwards.
The Ø47,6mm piston meanwhile is not chosen at random, it is a single segment model in VERTEX treatment with graphite. 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 thickness 1mm thus promoting revving. With the graphite processing, forms and composition, this piston was very well designed and studied in order to offer a better thermal expansion, agreeing at the same time perfectly with this cylinder to support the free times, brutal change Diet and prolonged endurance of circuit.
In the end, the special crankshaft 43mm and 90mm rod race with balancer (balancer shaft / Derbi GPR). This model is unique and again, really successful. It is perfectly balanced and carved out the best steel market. Its dynamic balancing result of the inorganic compound to tungsten carbide. This material is summarized in a combination of carbon and tungsten. It is a known material very dense, very strong and very hard. A new connecting rod is also installed on this linkage, ultra reinforced billet model. Ultra lightweight, it is really reserved for the competition!
Light weight and maximum rigidity are at the rendezvous. Its lubrication are improved, the cage rod feet is increased for a better grip, processed silver and mounted on anti-friction wedges. A linkage of you understand perfectly designed and adapted to support this high engine can withstand without no problem wildest engine speeds up to 16,000 rev / min and in combination with this cylinder and stroke 43, the actual displacement is 76,49cc with no less than 24 HP announced by brand provided for perfect assembly and adjustments in the rules of art!
Clearly, this pack / kit 80cc racing Ø47,6mm for your DERBI euro 1 & 2 special GPR will be a key asset to offer you guaranteed victories and thrills to the key! Delivered complete as presented, you can rely on photographs, they are binding as we usually do.
We recommend to accompany this pack with minimum: a carburizing 26-28 for the better, a flexible mounting kit admission, ITALKIT in Selettra of ignition with variable advance, cold NGK B105EGV obligatory racing motor oil, relaxing racing exhaust large volumes needed ....
This pack contains:
-cylinder Ø47,6mm aluminum 6 transfers with large exhaust boost
-piston VERTEX graphite mono segment Ø47,6mm
Aluminum cylinder head of -Couvercle
-Plot Breech incoming high compression hemispherical shape, polished finish
-Segment Ø47,6 end chromed 1mm thick
Axis-reinforced piston Ø12 X 37mm
Crab-like piston -Clips
-Vilebrequin Ultra reinforced with balancer long race 43mm rod 90mm ultra reinforced
-Cage To Ø12X16X15mm silver needle
-pack Engine gasket
-X4 Reinforced Studs M7X120mm
-Installation instructions
-Autocollant
Technical summary:
- Work of original housings needed for shipments revised upwards
- Cooling: Liquid semi-closed
- Compression ratio: 14.19: 1
- Displacement announced: 80cc
- Actual Capacity: 79,49cc
- Announced Power: 24shp
- Joint of base plate provides thickness 0.30 mm
- Squish value Recommended 0.70mm
- Volume of the chamber (breech) 5,80cc
Optional we offer a preparation course 1, this preparation is a modification of the exhaust port by increasing the charts and improvement of the duct, it increases the cylinder performance. Improved bottom skirt is also included in the amendment. Allow a little extra time for this preparation!
This high engine fits the 50cc motorcycles équpées gearboxes from Euro1 and Euro2 DERBI:
BULTACO Astro Enduro 50cc
BULTACO Lobito 50cc supermoto
Derbi GPR 50 Nude before 2004 (EBS050)
Derbi GPR 50 Racing before 2004 (EBS050)
Derbi GPR 50R Replica year 2001-2004
Derbi GPR 50cc year 1998-2001
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 DRD R enduro before 2000 (tubular frame)
Derbi Senda DRD R enduro before 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 before 2004 (perimeter frame) Euro 2
Derbi Senda SM X-Trem before 2000 (tubular frame)
Derbi Senda SM X-Trem before 2004 (perimeter frame) Euro 2
GILERA GP Replica 50cc
GILERA GSM 50ccGILERA 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 ...
