Power Kit 47cc + Seals for MTA4

Warning: this power kit is not approved for use on public roads. Using a Pocket Bike or a Pocket Quad with a power kit is authorized only for competition or on private roads and land.

All MTA4 Pocket Bikes have a cylinder of 37.5mm diameter and an engine displacement of 40cc. This UD Racing 47cc upgrade kit has a piston of 39.5mm diameter.

It increases the responsiveness and top speed.

Included:
- 1x cylinder head,
- 1x compression dome,
- 1x gasket set,
- 1 x cylinder,
- 1x piston kit (piston + snap rings + wrist pin + needle bearing)

Notice: these kits are not painted in black anymore.