Ruckus High Performance Polini Contra Spring 7% or 15%

Eliminate belt slip and optimize your shifting curve with the Polini Performance Torque Spring. Specifically engineered for the GET Motor Honda Ruckus and Metropolitan, this spring replaces the weak factory contra spring to provide consistent pressure on the rear pulley. Whether you are running a stock setup or a highly modified 50cc engine, these springs help keep your CVT in the powerband longer, improving uphill climbing and snappier throttle response.

• 7% Increase (White): Ideal for stock engines or riders looking for a slight boost in mid-range acceleration without over-revving.
• 15% Increase (Blue): The go-to choice for scooters with performance variators, exhaust upgrades, or big-bore kits that require higher RPM engagement.

Technical Performance Features

• High-Tensile Silicon Steel: Manufactured from premium alloy to resist “spring fatigue,” ensuring consistent tension even after hours of high-heat operation.
• Reduced Belt Slip: Increased seat pressure prevents the drive belt from slipping under heavy load, maximizing power delivery to the rear wheel.
• Optimized Shift Recovery: Helps the transmission “downshift” faster when slowing for corners or approaching an incline.
• Italian Engineering: Precision-wound by Polini in Italy to match the exact tolerances of the Honda 50cc 4-stroke drivetrain.