Publicado Por En julio 23, 2026 Adjustable spring rate coil that's also progressive. Sprindex is specifically designed to have a progressive spring rate for the last 20% of stroke for big hit support and for bikes with a linear linkage design.Adjustable spring rate. Adapters included for different size shocks and set ups. Made of super high tensile spring steel. Item Specifications: Spring Weight, 340 - 370, Material, Steel, Stroke (ins), 3, I.D. (mm), 38.3, SHIPS TODAY! Order before 1:30PM EST, M - F, and this item ships the same day! HAVE A QUESTION?Expert customer service by bike experts! A Real Brick And Mortar Retail Bicycle Shop with people you can talk to! Contact Us! (9-5 Mon-Fri, 12-4 Sat & Sun EST) Chat With Us