Motoforce racing spring seat for Yamaha/ Minarelli 50/100cc 2-stroke.

Motoforce Racing now also offers spring seats with ball bearings, which minimises the twisting effect of the torque springs. The Twist Control absorbs torsional forces and frictional losses are reduced.

Please note that using this seat will increase spring pre-load, which may makes it necessary to adjust the variator. Please only use heat resistant lubricating grease!

Fits all 107mm torque driver units as fitted to all Minarelli 50/100cc 2-stroke scooter engines produced since 1998.

Motoforce MF84.107