Nowaskey Shock Springs (150LB) 1999-2017 Dyna Models 115 Spring - Light 130 Spring - Medium 140 Spring - Heavy 150 Spring - Stunt 1991-2024 Sportster Models 115 Spring - Light 130 Spring - Medium 140 Spring - Heavy 150 Spring - Stun Spring Rate Guide 1999-2008 Touring Models115 Spring - Solo under 250lbs*130 Spring - Standard 2-up riding140 Spring - Heavy Duty over 500lbs*115 Spring is Powder Coated Gray. 2009-Present Touring Models 115 Spring - Solo Lightweight* 130 Spring - Solo under 250lbs 140 Spring - Standard 2-up riding 150 Spring - Heavy Duty over 500lbs *115 Spring is Powder Coated Gray. Intended for use with Nowaskey Dual Adjustable and Remote Reservoir Shocks. Includes one pair of shock springs. THE NOWASKEY DIFFERENCEOur shock springs are designed and built to exacting specifications. All of our products are hand-assembled in the USA with American-made materials. See our complete line of Dyna Parts, Sportster Parts, and Touring parts.