June 10, 2025

Ultimate Racing COMPAK 4 Pro B10 Alu 1:8 Clutch

New from Spanish brand Ultimate Racing is their COMPAK 4 Pro B10 Aluminium Clutch for 1:8 Offroad use.  The 4-shoe adjustable clutch redefines the concept of tunable clutches by introducing a unique adjustment system to the market.  This system allows you to change the clutch stiffness with the engine mounted and the car fully ready to run.  To adjust simply flip the buggy, lock the flywheel, and move the regulator to the desired position.  You can choose between three levels of stiffness (I, II, III), laser-engraved directly on the flywheel.  This innovation minimises clutch adjustment time. “I” is the softest setting or mounting position, and “III” is the hardest. To check the current setting, just see which number aligns with the adjustment hole on the regulator.  The 33 mm flywheel has been carefully designed to ensure compatibility with most brands on the market. In addition, the set is precisely designed to fit Ultimate clutch bells.

Source: Modelix [modelixracing.com]



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