Polini Cylinder Kit "Sport" 70cc cast iron Yamaha Aerox / MBK Nitro

The kit includes:
- 70cc Cast Iron Cylinder, with 5 transfer ports and simple, oval exhaust port
- Two-Ring Piston, 10mm pin
- High Compression Monobloc Cylinder Head
- Gasket Set for mounting
- Carbon Fiber Reed Petals, 2x (for original reed valve)

This cylinder kit is intended for intensive use; accordingly, it is very durable and does not require over-the-top maintenance.

Versatile and balanced at the same time, with a wide rpm range, this kit can reach between 7 and 9hp if combined with the right components (17.5mm carburetor and sports exhaust).

Not street-legal!