E-MTB OPTIMISEDFOX’s e-MTB Optimized forks not only receive the same special damper and air spring tune as our e-MTB Tuned forks, but they also receive beefed up aluminum alloy CSUs (Crown, Steerer, and Upper tubes) assemblies in order to meet our internal stiffness and strength requirements, as well meeting or exceeding EN, ISO, and ASTM testing requirements for e-MTB use cases on Class 1, and Class 3 e-bikes with increased system weight ratings. The one exception to this labeling is our hard-hitting 38, which is already burly enough to meet these requirements without needing any chassis reinforcements. Therefore, when you see an e-MTB Tuned 38 you can rest assured it’s ready for whatever you can throw at it.The all-new 36 and 38 come equipped with a new quick-release lever operated patent-pending floating axle system, combining the benefit of a floating axle with the ease of a tool-free quick-release. With this system, spacing is locked in via a floating sleeve, allowing repeated front wheel removal and reinstallation while maintaining perfect fork alignment. Floating sleeve positioning comes preset from the factory so if you are unsure of how to operate the floating axle system or simply don’t want to bother with it, you can just install the front wheel and get on with your ride.Available optionally is the new Kabolt-X, a lightweight bolt-on floating axle exclusively for the all-new 36 and 38 that not only shaves grams but also increases torsional stiffness via its sleeveless, single-sided pinch bolt design. Chassis alignment must be reset each time the front wheel is removed and reinstalled on both the Kabolt-X and 40 floating axles, but the end result is the same – perfect alignment and perfect performance.