PAC Racing’s 1500 Series Circle Track Dual Springs are designed for extreme endurance in the toughest environments.

They are constructed of our signature PACaloy super clean wire and are fully nitrided to enhance high-cycle applications. A multi-peen process is also employed to extend service life.

Unique to the 1500 Series is ID/OD chamfer finishing, a run through the polisher, and a Nano-Peen™ proprietary surface treatment for improved operating cycles.

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