The 70cc aluminium mid-race cylinder from the Motoforce Racing series. Great mid-race quality available at the same price that will usually only get you a sport cylinder from well established manufacturers.

Made of aluminium, it has excellent thermal qualities. The nikasil coated cylinder liner is wear resistant, providing long cylinder life. With the right setup, you can expect 12-15 hp.

Equivalent performance to Stage 6 race/ MHR rep but at a budget price. 12-15hp with the right setup up.
Peak power 11,500-12,000rpm so you will need a decent crank and exhaust!

We recommend using the Stage6 10mm small end bearings extra wide, although this will require widening the inside of the piston slightly, the conventional 10mm bearings are a tad narrow!!

Motoforce MF27.16643, MF27.16643/12