o more searching for the correct rate, stroke, and free length - these springs are offered in a single free length per rate that fits most shocks from 200 (7.875") to 230mm. All Enduro SL springs accomodate up to 65mm of shock stroke. A 38mm ID fits our Hazzard shock and Rock Shox models natively, and spacer kits are available to use with other makes and models. Length x Stroke/Rate Weight 111x65/375 261 g 115x65/400 298 g 115x65/425 308 g 118x65/450 336 g 120x65/475 350 g 123x65/500 380 g 124x65/550 406 g 127x65/600 455 g