Patent-pending GENIE technology is the ultimate air spring. Using the same tech as found on many of the latest Stumpjumper bikes it combines the control-enhancing linear spring rate of a coil spring through the “bump zone” with the progressive spring rate of an air spring at the end of the stroke to avoid bottom-outs. The Levo SL geometry delivers an exceptional ride right out of the ... https://www.electronics70off.co.uk/products/2026-Specialized--Turbo-Levo-SL-Comp-Alloy-Full-Suspension-Electric-Mountain-Bike.html