Oversized cylinder from Polini for Rotax 122 and 123 engines.
A cylinder with 60mm diameter made of nikasil aluminium, that changes the displacement of the motorcycle to 154cc. The kit includes a combustion chamber specially designed for this cylinder. The original cylinder head is still used.
You can mount a pneumatic valve, such as the one from Italkit.
Carburettion for this cylinder according to Italkit recommendations:
Carburettor | Jet | Pilot Jet | Pulverizer | Needle |
PHBH28RD | 130 | 55 | AV 264 | X56 |
VHSB34LD | 158-155 | 36 | Original | K56 |
SKU: | 146.0800 |
Stroke: | 2T |
Refrigeration: | LC |
Material: | Aluminium |
Displacement: | 154cc |
Cylinder diameter: | 60mm |
Piston Ring: | 2 |
Includes cylinder head?: | Yes |
Cylinder Head: | Normal (1 piece) |
Original pin?: | Yes |
Pin Measure: | 15mm |
Original Course?: | Yes |
Course: | 54,5mm |
Original Connecting Rod?: | Yes |
Connecting Rod: | 110mm |
Thread: | Larga |
Make | Model |
---|---|
Make | Model |
Aprilia | RS 125 |
Aprilia | RS 125 EXTREMA |
Aprilia | ROTAX 123 |
Aprilia | ROTAX 122 |
Aprilia | Futura 125cc LC |
Aprilia | AF1 |
Aprilia | RX 125cc LC - 2T |
HM | DERAPAGE 2T |
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