Fitments Years Make Model 2009 - 2017 Harley-Davidson V-Rod Muscle VRSCF 2012 - 2017 Harley-Davidson Night Rod Special VRSCDX 2012 Harley-Davidson Night Rod Special 10th Anniversary Edition VRSCDX VideoFeaturesHigh-quality, high-performance replacement fork springsA Progressive Suspension rate spring has the advantage of a rising rate resistance to compressionThe benefit is the spring can be soft enough at the start of the travel to offer a "plush" ride, yet firm enough at the end of the travel to soak up the big bumpsSpring rates have been chosen to reduce front-end dive during braking, yet still provide excellent ride comfortSpecs For Fork Tube Diameter: 49,00 mm (1,93") Spring Rate: 0,71 kg/mm - 1,16 kg/mm (40 lb/in - 65 lb/in) Spring Rate: 40.00 lb/in - 65.00 lb/in Spring Rate: 0.71 kg/mm - 1.16 kg/mm Units: Pair Color/Finish: Black Model: Standard Product Name: Fork Springs Riding Style: Street For Fork Tube Diameter: 1.93" For Fork Tube Diameter: 49.00 mmApproximate Package Weight & Dimensions Weight: 3.15 Height: 2.04 Length: 24.68 Width: 4.84