Fitments Years Make Model 2016 - 2020 Triumph Street Twin 900 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 Color/Finish: Black For Fork Tube Diameter: 41.00 mm Spring Rate: - Units: Pair For Fork Tube Diameter: 1.61" Model: Standard Product Name: Fork Springs Spring Rate: - For Fork Tube Diameter: 41,00 mm (1,61") Spring Rate: - Riding Style: StreetApproximate Package Weight & Dimensions Weight: 3.5 Height: 1.88 Length: 24.49 Width: 4.95