Standard OEM primary clutch springs often suffer from unnoticed rate loss over time, a degradation that directly reduces engine RPMs and overall performance. The SPEEDWERX H5 Alloy Primary Clutch Spring addresses this issue by utilizing a new material with a tensile strength 30,000 to 40,000 PSI higher than standard chrome-silicone springs. This enhanced durability ensures no rate loss over time, maintaining efficient clutching and delivering a more consistent, high-performing spring action.
Engineered to match the performance of titanium springs at a fraction of the cost, the H5 series features a powder-coated finish with the part number and rate printed directly on the spring. As a direct OEM replacement, these alloy springs are available in custom rates specifically designed for turbo, nitrous, and big bore applications. The SPEEDWERX H5 has been a trusted component in the industry for over 15 years, providing a reliable solution for riders seeking consistent power delivery without the premium price tag of exotic materials.