Kit 70cc Ø44mm POLINI aluminum + electronic box calculator for MBK BOOSTER X & YAMAHA GIGGLE / C3 and NEO'S EURO 4

Here is the POLINI kit in aluminum diameter 44mm for the original crankshaft 43.6mm stroke, or an almost square diameter stroke ratio! This large diameter kit will increase your displacement from 50cc to 70cc (actual 66.29cc) of torque and power! It comes with an electronic engine reprogramming unit to correct the injection and release the ignition! In combination with an extended transmission , a sport variator , this kit allows you to reach around 85 km / h real (90 meter) while being torquey and reliable. It is delivered with a released / unbridled intake pipe as well as its gaskets, it is mounted in combination with the original cylinder head without retouching, the compression ratio will be increased to 12.4: 1.

Mounts on a 4-stroke scooter :

MBK BOOSTER X 4T
MBK OVETTO 4T
MBK NITRO 50 4T

YAMAHA GIGGLE 4S
YAMAHA AEROX 4T
YAMAHA C3 4T
YAMAHA NEO'S 4T
YAMAHA VOX 4T

And other models ...

Attention, do not mount on EURO 2 nor on EURO 3! Only on EURO 4, from 2018!