Torque Springs Polini Evolution Piaggio / Minarelli

Polini Torque Springs Evolution Piaggio / Minarelli = 2 torque springs, different strengths. Recommended for sport and racing set ups. Torque springs are quite important when it comes to adjusting your transmission. They put pressure on the rear pulley and influence clutch performance. They have to be replaced with a harder spring as soon as the belt is starting to slip and the engine is starting to underperform in spite of using lighter weights. If you're going for a harder spring, you'll have to readjust your variator. Note: the springs fit Piaggio as well as Peugeot; in Minarelli engines, you can only use them with an oversize / overrange torque drive. White : -30% Blue : - 8%