{"product_id":"102mm-length-helper-spring","title":"102mm Length Helper Spring","description":"This design feature aims to have a minimal impact on the overall spring rate of your main coilover springs, preserving intended suspension characteristics. It comes with a Stack Spring Adapter and is sold individually as one spring.\n\nSpecifications for this helper spring include a length of 102mm (4.0 inches) and an inner diameter of 76mm (3.0 inches). The spring rate is 4.5kgf\/mm, equivalent to 250 lbs\/inch. It offers a stroke of 59mm (2.3 inches), a Free Collapsed Height (FCH) of 43mm (1.7 inches), and a Collapsed Weight (CW) of 265kg (584lbs).","brand":"K-Tuned","offers":[{"title":"Default Title","offer_id":52869706940728,"sku":"H030-040-250","price":220.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0970\/4895\/3144\/files\/688007312.webp?v=1787917850","url":"https:\/\/store.motormia.co\/products\/102mm-length-helper-spring","provider":"MOTORMIA","version":"1.0","type":"link"}