The POLINI 70cc ALU is your entrance to the world of the POLINI alloy cylinder kits.
The POLINI ALU is casted from the far superior alloy and then Nicasil plated, which makes the kit very long lasting. Despite this the ALU gives you some nice racing technology features. Very huge port areas and sportive port timings give the ALU kit the ability to rev up to 11.000 rpm. The exhaust port has some saw tooth in it with allows the port width to be very excessive. The piston rings get the guide of these little bars.
Thanks to the thermal much superior alloy composite the ALU can be setted up quick and easy and the compression ratio can be chosen fairly higher.
With the rev on potential of those kits you have to use a larger carb and a well suited exhaust with a short tuned length.
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