Top Racing Spring Set Zuma
Awesome kit for the price, comes with three springs total for tuning!
Minarelli Torque spring set from Top Performances, consists of 3 springs.
Using different torque springs will change the rpm at which the variator 'shifts'. The job of the torque spring is to press the rear pulley to the drive belt. It also provides the pressure necessary for the variator to 'shift'. Whenever the engine's power has been increased through tuning, the choice of the torque spring will have to be reconsidered. You can see this when the drive belt starts to slip or the engine revs up but you can't feel any acceleration. Torque spring and the variator always interact; if a new spring is used, the variator will have to be re-adjusted, too. Generally softer springs will use lighter roller weights and stiffer springs will require heavier weights.