The Ruima 47mm Cast Iron Cylinder is a great option for those looking for reliable power without the high price tag. Ruima cylinders are some of the best made at the best prices. The Ruima 70cc big bore kit for the Minarelli engine will give you the power you need to keep up with and pass that traffic. The cast iron material provides a durable, long lasting kit. The larger displacement will give you the most noticalbe improvement in any single upgrade.

If you are looking to upgrade just one thing, this is the place to start. With just a cylinder you can tune your carb and variator to work well with the 70cc. Once you move past the cylinder mod you will need to start upgrading other parts as well to get things to work properly. For those just starting out and trying their hand for the first time with performance mods the Ruima is a great option.

The Ruima Cast Cylinder features a 47mm bore with a 10mm wrist pin.

Kit comes with cylinder, head, piston, rings and gaskets.

This part fits:
Scooters using the Minarelli Horizontal engine with a 10mm wrist pin