Kit 50cc high engine Ø39.86mm ITALKIT Sport bi-segment aluminum DERBI euro 1 & 2

Approved for public roads, respects the 50cc displacement.

Ideal for preserving a small engine configuration that hides its game well, this 50cc diameter 39.86mm kit from ITALKIT will be perfect! Don't get me wrong ... it delivers excellent performance! Sport model in aluminum, its finish, its architecture ... make it a high-end high-end engine.



To ride every day, it will be more than enough. Between torque and speed, you will gain for both. Solid and reliable, it is equipped with a VERTEX bi-segment piston, segments in very fine chrome-plated specific steels with piston pin and reinforced clips. The design of this piston will improve the scans and the lubrication of the cylinder thanks to 2 lateral lubricators and 2 micro outlets on the exhaust side passing on the exhaust bar.



The nykasil treated aluminum cylinder is out of the ordinary. Diagrams revised upwards, perfect alignment with the piston with 5 perfectly worked transfers. The exhaust outlet is bar and significantly widened. In addition to this, you need to know more about it.



The cylinder head which is delivered with this high engine also has a quality and finish which is without appeal. It has a high compression polished finish combustion chamber. ITALKIT has not skimped on this set, nothing has been forgotten and everything has been thought out to obtain maximum performance and strength.



Clearly you will understand, here we have a high performance engine, top of the range, designed and created for torque & speed while preserving increased strength / reliability. It comes complete with its cylinder, its cylinder head, its VERTEX bi-segment piston, its 2 segments, piston pin and clips, cylinder head connector, O-ring for this connector, 2 base gaskets with 2 thicknesses to make the squish to perfection, 6 O-rings for sealing the cylinder head, instructions, sticker ...

With this kit we recommend you at the very least : Ø17.5mm carburetion, racing exhaust, cold spark plug (B9 / B10 depending on temperature), a break-in of at least 500kms not exceeding 8,000 rpm, with racing oil 2-stroke 100% synthesis, good carburetion settings ...



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

This high engine is mounted on 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 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 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 ...