torque spring Polini +33% for Morini, Suzuki 243.060 fitting for Italjet Formula Race 50 FR50 1996, 4,7 PS, 3,5 kw

Polini springs that increase pressure by 33% and is therefore ideal for tuned engines. The springs press the gear on the rear converter onto the belt. It also creates pressure to shift the variator. A lighter pressure is required once a motor has been tuned to prevent the engine from moving into a dangerously high rev range. The pressure of the springs is closely tied to the variator. If a spring is fitted, it must be matched to the variator. Original spring weight: 45/24mm/kg. Polini spring weight: 45/32mm/kg. Spring thickness: 4mm. Total length: 110mm. Internal diameter: 45mm. Number of coils: 7.