In addition to the 125cc standard cylinder kit, Airsal also offers a T6 racing version. The main difference of the T6 compared to the 125cc standard cylinder is the improved piston, which significantly changes the combustion chamber...

The Airsal YI-3 cylinder for the Yamaha 125cc engines is supposed to be a cheap alternative to the expensive original cylinder. Airsal not only uses a copy of the original cylinder, but also improves the coating, the piston and the...

If you are looking for a strong cylinder kit for the WR 125, then the Athena 183cc cylinder kit is just the thing. It impresses especially with its durable Nikasil coating and the light cast iron piston, which is made of aluminium. The...

The Malossi 166cc 4-stroke cylinder offers a huge increase in power and torque over the whole rev range compared to the original. The installation of the 4-stroke moped is, as always, a little trickier due to the timing chain, but can...

Here we offer you a very high quality cylinder kit from Polini. To use it you have to retune the carburettor as described in the installation instructions and you should use a reinforced crankshaft bearing. For the maximum power of 37 HP...

With this 80cc bike engine kit, you have everything you need to turn your bike - or whatever you want - into a gasoline-powered vehicle! Whether it's a mountain bike, beer crate or DIY go-kart - grab the kit and get started right away!...