ISR Legal Valve Spring (PAIR)

These springs are built to OEM spring specs for the Polaris 120 engine.
They will hold their length longer than the factory Polaris spring.
These springs are ISR legal for all Stock and Improved Stock racing.

For the 2019/2020 race season they are ISR legal for the Ski Doo Mini Z and Mini Rev.
Note: When using them on the Ski Doo you will also need to use the Part# 14781-ZE1-000 Lash Cap

and 14773-ZE1-000 Retainer

Sold as a PAIR

ISR & ISOC LEGAL