COUNTER SPRING, POLINI

Polini contrast springs for variator
Code: 243.082
Polini has created contrast springs for the rear mobile half-pulley to adapt them to the additional load due to elaborate engines that deliver more power and torque. Polini contrast springs prevent belt slippage and consequent premature wear by applying a variable additional load of 10% for Maxiscooters and 7% (White spring) or 15% (Blue spring) for 50 scooters. in any case, mount this type of springs only if strictly necessary, the best performance will in fact always be obtained using the spring which, with less load, allows optimal power transmission. This kit consists of 2 springs
Features:
% increase: +25%
Spring load mm/Kg: 65/42
Number of turns: 5
Filament diameter: 4,9
Unloaded spring length: 116
Internal diameter: 57


APPLICATIONS OF THIS PRODUCT:
According to the data provided by the manufacturer, this article is compatible with the following brands, models and years:
KYMCO DOWNTOWN 200i 4V (SK40) 2010
KYMCO DOWNTOWN 300i 4V (SK60) 2009/2010
FORZA 300 ie 4T LC
SH 300i dal 2007 al 2014
SH 300i E4 dal 2015
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