Already well known for years, we offer the POLINI motori 154cc complete cylinder / piston / cylinder head kit for ROTAX 122 and 123 engines, the engine that equips 125cc 2-stroke models such as the APRILIA RS, AF1, EUROPA, PEGASO, TUAREG RALLY / WIND, RED ROSE, 125cc and other models.
The kit is announced by POLINI has a power of 37hp at 11,000rpm. Couple level one thing to say according to our customers .... It's hard! It has a reputation for being more solid than els GILARDONI. It can be fitted with the electric and pneumatic exhaust valve!
The torque will also be greatly increased! The machine will be more flexible and the power more exploitable. Please note that road use is prohibited. This room is reserved for the circuit. To increase the power, POLINI worked on the diameter of the piston (by simple increase), but also on the diagrams, the shapes of lights, POLINI also re-studied the scanning system. The cylinder head is also corrected on the chamber volume side for a better compression ratio and shape.
We recommend it with a relaxation exhaust, unbridled ignition, a minimum carburation of 30mm (round bushel will be fine). If your engine is very driven, prepared, or even old, we will recommend changing the crankshaft, in passing do not hesitate to install a reinforced connecting rod kit. A set of rigid carbon valve slats will be welcome in order to exploit good speeds .
The pack contains :
complete seal pack (with 3 base seals to make the squish)
Cylinder Ø60mm aluminum nykasil
Piston Ø60mm bi segment with high silicon content
Set of 2 chromed steel segments for the pre-ground crown
Piston pin
Piston clips
Screws
Notice in French
...
This kit has the small hole at the location of the valve to operate a pneumatic valve like the famous ITALKIT for example!
Mounts on :
ROTAX 122 engine
ROTAX 123 engine
APRILIA AF1 125cc
APRILIA AF1 125cc FUTURA
APRILIA AF1 125cc REPLICA
APRILIA AF1 125cc SINTESI
APRILIA EUROPA 125cc
APRILIA PEGASO 125cc
APRILIA RED ROSE 125cc
APRILIA RS 125cc
APRILIA RS 125cc EXTREMA
APRILIA RX 125R
APRILIA SPORT 125cc
APRILIA SX 125cc
APRILIA TUAREG RALLY 125cc
APRILIA TUAREG WIND 125cc
HM CRE 125cc
HM DERAPAGE 125cc
And many other 125cc motorcycles.
As an option we offer you a stage 1 preparation, this preparation is a modification of the rear side channels and the exhaust port by increasing the diagrams and improving the duct, it increases the performance of the cylinder. A correction of the faulty passage of the coolant is also made! POLINI kits are known to heat, the two passages are therefore improved! Allow a little extra time for this preparation!
Stage 1 preparation version :
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