Not homologated on the public road, only reserved for the competition, does not respect in any case the code of the road!
The famous kit ATHENA racing for DERBi euro 1 and 2, already well known to all it is really low price in relation to its benefits, for this price, no other kit reaches him at the ankle. Let's start with the cylinder, it is made of aluminum and treated high-end nykasil of course, transfers duct and studied form to the number of 5 (4 side and 1 back), a large exhaust bar studied for power / torque / high speed / longevity, it is pre-lapped and very well finished, diameter 40mm.
The top of the cylinder is specially turned / machined for the breech stud.The breech stud has been studied too, a mini round stud very convenient for those who want to remake different, the room is frustoconical polished, in High-grade aluminum cut into mass for better cooling.
The piston is treated silver with high silicon content, it is prepared to the kit for better scanning and mono segment, its cap is 100% flat, the segment is chrome base s10 curved for good high regime with less friction. For your squish, several base seals are delivered, attention, you will have to obtain a squish of 0,9mm with a tightening to 1kg of the nuts of breech! In short this kit will make you reach good power, torque and incredible high speeds. The solidity is very good thanks to its bar quite thick and its solid treatment.
We advise with this kit at least: reinforced crankshaft, reinforced bearings, carburation 21mm, racing exhaust (the ATHENA exhaust squeezed a good marriage), cold racing candle, 100% synthetic oil in mixture, suppression of the oil pump.
Delivered with:
Cylinder
Seals
Cylinder head
Cylinder block
Segment
Piston clips
Piston
Piston pin
Guaranteed athena
Athena record
Optionally we offer a stage 1 preparation, 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 ...
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