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COUNTER SPRING, POLINI EVO-SLIDER

Big Evolution contrast spring kit for Polini variators

Code: 243.101

Polini has created contrast springs for the movable rear half-pulley to adapt to the additional load due to elaborate motors 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 spring only if it is strictly necessary, in fact, the best performance will always be obtained by using the spring that, with less load, allows optimal power transmission. This kit consists of 2 springs

Characteristic:

spring features

% increase: 8%

Spring load mm / Kg: 50/30

Number of turns: 5.5

Filament diameter: 4.4

Unloaded spring length: 90

Internal diameter: 48.5

NB: If used on Yamaha engines, it can only be mounted together with the Polini Speed Drive.

COMPRESSION RATIO: +15%

35,03 €

IVA inc.

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SHIPPING

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PAYMENTS

Payments accepted

RETURNS

You have 15 calendar days from the date of receipt of the order to return a product with which you are not satisfied and have a refund, including delivery costs. Within this period, you can return said product along with the invoice. The amount will be paid once received in our warehouse and verified its status. The products that are returned must arrive in the same state in which they were sent, with all the components of the same, without modifications or alterations and with its original packaging. We only sell new products

MORE INFORMATION

Technical characteristics

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