Ultimate Racing Compak Clutch

Ultimate Racing first introduced its off road clutch system 4 years ago, and it was used by Miguel Matias to win his 1/8 off-road European Championship. Now with the introduction of the Compak, the standard clutch has been improved with a smaller diameter of the flywheel of 34 mm and this allows it to be fitted into nearly all current buggy models, Hong Nor, Mugen, Kyosho, HoBao, Crono and Xray.

Source: Ultimate Racing [ultimateracing.es]