Kit 70cc Ø47,6mm SIMONINI racing mono-segment liquid aluminum scooter PIAGGIO (NRG, RUNNER ...)

High engine not meeting regulatory 50cc engine, only for competition on the track, run ....

For advanced riders, this small high engine hides his game. This cylinder kit / piston and cylinder head will be a real asset performance and durability for your motor scooter PIAGGIO liquid. Requires no machining of low engine, it has a normal race / origin 39,30mm.



Nykasil quality aluminum cylinder thus has a 47,6mm diameter bore, with 5 admission transfers very well designed with a very specific architecture and exhaust revised upwards. Like its big brother in special 80cc 44mm long run, the diagrams are to be revised upwards if you want more high rpm. This one is based mainly for the couple to maintain increased strength as it is.



A single segment in VERTEX piston comes accompany this kit, obviously high-end, quality is no longer in doubt. Provides with its axis of piston reinforced Ø12 X 38mm, its 2 clips crab type and end bulging chrome segment hard Ø47,6 X 1.2mm.



In addition, a cylinder head high compression model specially designed to equip this engine comes up with, as shown in the pictures. This cylinder head is made ​​of high quality aluminum alloy materials, providing better cooling. Mounted O-ring for safety, polished finish with tapered shape chamber.



In summary, we thoroughly enjoyed this high complete engine for a very correct price in comparison to the Polini, MHR and other brands, provides benefits than up and that may even surprise many with its strength ( respecting a worthy mounting of the name and the perfect settings), performance to date with frank times, extensive acceleration and impressive torque.



We recommend at least: cold candle racing (according outdoors temperature, several joints of base plate to make the squish, racing exhaust, racing carburetor (21mm minimum to guarantee good food), reinforced bearings C4 type or better Celeron pack variation racing, a quality motor oil, ....

contains:

- Aluminum cylinder bore 47,6mm, 5 transfers and oval exhaust
-Culasse High compression chamber in aluminum with polished finish, tapered shape
-piston Mono segment VERTEX preparation with the rear skirt
X1 end segment chrome domed hard Ø47,6 X 1mm
X2 crab-like piston Clips
Axis-reinforced piston Ø12 X 38mm length
-pack High engine gasket
-Notice Simonini
-Autocollants

Optional we offer a preparation course 1, this preparation is a modification of the channels and the exhaust port by increasing the charts and improvement of the duct, it increases the cylinder performance. Improved piston and bottom skirt is also included in the amendment. Allow a little extra time for this preparation!



Mounts on PIAGGIO liquid 50cc 2 stroke:

Aprilia SR
ARPILIA SR R

Derbi GP1
Derbi GPI OPEN

GILERA DNA
GILERA RUNNER SP before 2005
GILERA RUNNER SP after 2006
GILERA RUNNER

PIAGGIO NRG EXTREME
Piaggio NRG MC2 before 1997
Piaggio NRG MC2 after 1998
Piaggio NRG MC3 DD NRGPIAGGIO
Piaggio NRG Power DD NTTPIAGGIO
PIAGGIO QUARTZ
Piaggio Zip SP after 2001
PIAGGIO ZIP SP before 2000

And other models ...