When you use this Polini 47mm Big Bore Kit in conjunction with your stock crankshaft you will increase your total displacement to 70cc! The manufacturer claims 11.5bhp at 10,600RPM is possible with this kit.
Fits the following and more:
- Yamaha Jog and Zuma (02-12)
- Aprilia Scarabeo 50
- Malaguti Ciak, F10, F12 and F15 A/C, and Yesterday 50
- PGO Big Max
- Genuine Buddy 50 and Roughhouse 50
- Eton Beamer 2
Please see our Warranty & Returns Policy.
*You may need to modify your engine case to accommodate the larger cylinder.