A new cluthc bearing stopprer which is made for nitro on-road cars. The accessory is made up using a machined insert that ensures the clutch bearings stay in place while the includes shims allow to adjust the backlash, ensuring improved bearing durability when adjusted correctly. Also part of the set is a gold-colour, titanium-nitride coated screw. It is understood that the bearing stopper fits most nitro on-road engines and cars.