The stiffness of the contrast spring plays an important role in the transmission of power from the engine to the rear wheel.
It exerts back pressure on the rear pulleys and therefore has a considerable influence on the operation of the variator. The contrast spring is usually stiffer if the belt tends to slip, if the variator does not work at the optimum RPM level or if the engine is still running below the optimum RPM despite light weights.
What has a negative influence on engine performance is a twisted contrast spring. With the Evo-Slider plate the manufacturer Polini has solved this problem.
It is a small plate that is mounted between the contrast spring and the clutch, which reduces the torsion to a minimum. In addition, the Polini Evo-Slider absorbs vibrations of the pulleys at high RPM.
The result is a slimmer engine and a better power transmission to the rear wheel.
The thicker the diameter, the harder the contrast spring.
Choose the size according to the % increase in hardness or -% softer than the original
The kit includes a harder or softer spring and an Evo-Slider supplement.
The Polini Evo-Slider allows the spring to rotate, which significantly improves the Maxiscooter's handling at standstill and the throttle response
SKU: | A-MUELLEPOLINIPIA |
Product Type: | Transmisión (Scooter) - Muelle de contraste |
Make | Model |
---|---|
Make | Model |
Gilera | Runner 50c.c. LC (desde '99 hasta '00) |
Gilera | Runner 50c.c. LC CAT (a partir del '01) |
Gilera | Runner Purejet 50c.c. LC (a partir del 08/'04) |
Gilera | Runner Purejet 50c.c. LC (antes del 08/'04) |
Gilera | Runner SP 50c.c. LC (a partir del 08/'04) |
Gilera | Storm 50c.c. AC |
Gilera | Stalker 50c.c. AC (antes del '99) |
Gilera | Stalker 50c.c. AC (a partir del '99) |
Gilera | Typhoon 50c.c. AC |
Gilera | Typhoon X 50c.c. AC |
Italjet | Jet Set 50c.c. AC (4 Tiempos) |
Italjet | Torpedo 50c.c. AC (Motor Piaggio) |
Piaggio | Diesis 50c.c. AC |
Piaggio | Fly 50c.c. AC |
Piaggio | Free 50c.c. AC (a partir del '99) |
Piaggio | Free 50c.c. AC (antes del '99) |
Piaggio | Liberty 50 2T AC |
Piaggio | NRG mc² 50c.c. LC (a partir del '98) |
Piaggio | NRG mc² 50c.c. LC (antes del '98) |
Piaggio | NRG mc² DD 50c.c. (antes del 98) |
Piaggio | NRG mc² Extreme 50c.c. AC |
Piaggio | NRG mc² Extreme 50c.c. LC |
Piaggio | NRG mc³ DD 50c.c. LC Cat |
Piaggio | NRG mc³ DT 50c.c. (Cat) AC |
Piaggio | NRG mc³ PureJet 50c.c. LC |
Piaggio | NRG Power DT 50c.c. AC (a partir del 2005) |
Piaggio | Quartz 50c.c. LC |
Piaggio | NTT 50c.c. LC |
Piaggio | Sfera RST 50c.c. AC |
Piaggio | Storm 50c.c. AC |
Piaggio | Typhoon 50c.c. AC |
Piaggio | TyphoonX (TPH-X) 50c.c. AC |
Piaggio | Vespa ET2 50c.c. AC (a partir del 2000) |
Piaggio | Vespa ET2 50c.c. AC (con Carburador) |
Piaggio | Vespa LX 50c.c. AC - 2 Tiempos |
Piaggio | Zip II 50c.c. CAT (a partir del '99) |
Piaggio | Zip SP2 50c.c. LC (agua) |
Piaggio | Zip SP 50c.c. LC |
Piaggio | Zip SSL 25 (a partir del 1999) |
Piaggio | Zip SSL 25 (hasta el 1999) |
Piaggio | Zip FastRider 50c.c. AC |
Piaggio | Zip Base 50c.c. AC (a partir del 1999) |
Piaggio | Zip Base 50c.c. AC (antes del 1999) |
Aprilia | SR 50c.c. Di-Tech (desde 07/2003) Motor Piaggio) |
Aprilia | SR 50c.c. Racing (desdel 07/2003) - Motor Piaggio |
Aprilia | SR 50c.c. R Factory (desde 2005) - Motor Piaggio |
Aprilia | SR 50c.c. R (a partir del 2005) - Motor Piaggio |
Aprilia | SR 50c.c. Street LC (a partir del 08/04) - Piaggio |
Derbi | Atlantis AC 50c.c. (> 06/2002) - Motor Piaggio |
Derbi | Atlantis LC 50c.c. (> 06/2002) - motor Piaggio |
Derbi | Bullet 50c.c. - Motor Piaggio |
Derbi | GP 1 Revolution 50c.c. LC - Piaggio |
Gilera | DNA 50c.c. LC |
Gilera | Easy Moving 50c.c. AC |
Gilera | Ice 50c.c. AC |
Gilera | Runner 50c.c. LC (a partir del '04) |
Gilera | Runner 50c.c. LC (antes del '99) |
Aprilia | SR 50c.c. Funmaster LC (>07/2003) - Motor Piaggio |
Aprilia | SR 50 Sport LC (> 07/2003) - Motor Piaggio |
Derbi | GP 1 50c.c. LC - Motor Piaggio |
Piaggio | Sfera 50c.c. AC - 1°serie (desde 91 hasta 94) |
Piaggio | Zip 50c.c. AC 1° serie (desde 91 hasta 94) |
Piaggio | Sfera NSL 50c.c. AC |
Piaggio | NRG 50c.c. LC |
Peugeot | Speedfight 3 AC |
Peugeot | Ludix Classic 50c.c. AC |
Peugeot | Ludix Elegance 50c.c. AC |
Peugeot | Ludix One 50c.c. AC |
Peugeot | Ludix Snake 50c.c. AC |
Peugeot | Ludix Trend 50c.c. AC |
Peugeot | Vivacity 50cc AC 2T (a partir del 2014) |
Peugeot | Vivacity 50cc AC 2T (antes del 2013) |
Peugeot | Ludix 50 2T |
Peugeot | Speedfight 4 AC 2T |
Peugeot | Citystar 50 |
Peugeot | Django 50cc 2T |
Peugeot | Kisbee 50 2T E4 |
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