Not homologated on the road! Reserved for competition.
Here is an excellent kit, very precise, sharp and powerful, haute couture and top of the range, although we would have preferred it with a stud bolt given the price... This bolt in part is not so important. We recommend it to those who really want power and big preparation. It has a diameter of 50 millimeters, a very thin, hard and domed chrome bi-segment piston, this allows very high speeds while maintaining enormous torque, the piston also reinforced but cast not forged.
The cylinder head is really very worked, high compression tapered chamber, polished and very efficient. This kit comes with 4 base gaskets to refine your squish like all real high-performance kits worthy of the name. The cylinder is in aluminum bored cleanly in d.50mm nikasyl treated, has a large exhaust with boosters, 5 transfers of special size for the sides so plan an alignment, the skirt is cut progressively towards the rear in order to obtain optimal filling (profiled skirt system).
It is quite discreet in its shape taken from the original am6 cylinder and has its shiny gray color. It is also delivered with carbon valve slats of 2 thicknesses exactly planned for the kit. We also appreciated the location of the compression O-ring in the cylinder lip and not in the cylinder head lip, this allows for easier assembly.
The package consists of:
-1 polished tapered conical high compression chamber cylinder head d.50mm aluminum
-1 cylinder d.50mm aluminum / nikasyl 5 exhaust transfers with boosters
-1 bi-segment piston almost with reinforcement bar
-1 axis diameter origin reinforced anti-wear treatment
-2 axle rods (piston clips) reinforced
-1 complete seal pocket including 4 base for squish settings
-1 euro 1/2 exhaust wedge
-2 reinforced polished hard chrome domed segments
-2 carbon valve slats adapted to the kit
-1 hose + 2 hose clips
- Polini guaranteed
- Polini instructions in French / English / Italian
-polini stickers
We recommend it with at least :
Carburetor kit 21mm minimum and 24 to make good use of it / racing exhaust / reinforced crankshaft / reinforced bearings / cold competition spark plug
As an option, we offer you a STAGE 1 preparation, this preparation includes a selection of the best part from our stock, a marked improvement in the shape and the exhaust diagram as well as a special retouching of the cylinder skirt and the piston for better sweeping/filling according to our best tests. An improvement in lubrication is made on passage in view of the speeds obtained after preparation. This preparation requires an additional period of 2 to 15 days depending on our availability! It requires tools and around 4 to 5 hours of work on this cylinder.
Mounts on 50cc motorcycles with gearbox equipped with the minarelli am3, am4, am5, am6 euro 1, am6 euro 2 engine :
APRILIA RS 50cc am6 engine from 1997 to 2006 (warning news after 2006 in derbi euro 3 engine)
APRILIA RX am6 engine (warning news after 2006 in derbi euro 3 engine)
APRILIA MX am6 engine (warning news after 2006 in derbi euro 3 engine)
APRILIA TUONO 50cc am6 engine from 1997 to 2006 (warning news after 2006 in derbi euro 3 engine)
BETA RR
BETA RR ALU
BETA CRE
HONDA HM
HONDA CRE
HONDA BAJA
HUSQUVARNA WXE
HUSQUVARNA CH
HM DERAPAGE
HM CRE
MALAGUTI DRAKON
MALAGUTI XTM
MALAGUTI XSM
FANTIC CABALLERO
PEUGEOT XP6
PEUGEOT XPS
MOTORHISPANIA RYZ
PEUGEOT XPS
PEUGEOT XP STREET
PEUGEOT XP STREET EVO
PEUGEOT XR6
MOTORHISPANIA RX
PEUGEOT XR7
MOTORHISPANIA RX-R
RIAJU RS1
RIEJU RS2
RIEJU RS2 MATRIX
RIEJU RS2 MATRIX PRO
RIEJU SMX
RIEJU MRX
RIEJU SPIKE
KEEWAY TX EN
YAMAHA DT
MBK X-LIMIT
YAMAHA TZR
MBK X-POWER
SHE RC O SM
SHE RC O EN DURO
SHE RC O HRD
SHE RC O EN DURO
And many other machines!
