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Ships within 48 hours · Estimated delivery Sep 9 - Sep 14
No other parts or any labor are included
The 2012-UP Arctic Cat models use a different helix
professional dealer installation is recommended
Can be used along with the stock primary or the STM primary
Our "Mo Flow" performance impeller achieves up to 20% more coolant flow
Primary Clutch Spring (120-310) // SKU: 05-120-310 Category_Default Category/SXS/Polaris RZR/RZR XP 900 '11-14 No other parts or anyPrimary Drive Clutch Spring (120 310) SKU: 05 120 310 Fine tune your clutch engagement and maintain consistent peak operating RPM under heavy load with the Bikeman Performance 120 310 Primary Clutch Spring. As a core component of your drive clutch tuning, the primary spring directly governs engagement speed, upshift timing, and peak RPM retention across your powerband. Featuring a 120 lb initial load and a 310 lb finish load, this spring profile