Warning, cylinder not approved and reserved for competition, on the circuit.
Here is the brand new 70cc kit from AIRSAL. After a great success in the AIRSAL aluminum kits and following a strong demand, these cast iron kits are finally coming out! You should know that a cast iron kit is more solid on long journeys, so it allows additional reliability but it gives a little less power than an aluminum kit.
This model in diameter Ø47mm is a real 70.5cc! It is a very good high engine, very well finished which will bring much better performance to your machine without compromising on the solidity. It is of course equipped with a two-segment piston with lateral grease nipples for better torque and sweeping.
It has 5 intake transfers, the sides at the base are well worked and a large oval exhaust. The internal sides are nicely drawn. In addition it is sold with an aluminum cylinder head for better heat dispersion, high compression hemispherical chamber model.
In summary, this kit will give you very good performance especially at low speed while having excellent strength, all at unbeatable prices. Of course it is delivered complete as presented.
We recommend it with at least: 19mm carburation + 0.30mm valve blades (original pipe, original valves and original valve diffuser can be kept), racing exhaust, reinforced crankshaft and bearings, spark plug cold racing ...
Contains:
-Cylinder cast iron 5 transfers large oval exhaust
-High compression cylinder head hemispherical chamber
-Piston bi-segments side grease nipples
- Fine chrome segments 1mm thick
-Axis of piston Ø12 X 35mm
-G piston clips
-Pack motor seal
-Threaded end for cooling hose connection
-Threaded exhaust studs
-Notice ...
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 ...
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