Inspired by the legendary Back 40 trail system in Bentonville, Arkansas. The BC40 is a modern racing machine that updates the XC playbook. It combines the sharpness of a race-day bike with the control and confidence of an all-day trail sled. The 120mm suspension is just leggy enough to tame rocky ledges and intermittent flow features, yet it also provides a second-to-none pedaling platform that translates power and efficiency. The suspension performance is anchored by a progressive steering geometry that ensures precise handling and tracking with stability at speed. The BC40 Frameset is the perfect foundation for you to build your dream bike with all of the component options of your own choosing. Recent improvements include 100g weight savings, stiffer front triangle, stronger and more durable, co-molded bottom bracket insert, and a co-molded alloy insert for the main pivot bearing bores that improves bearing life and ease of maintenance. Designed to stretch the capability of what a cross-country bike can do while making no compromises with weight and pedaling efficiency. Aluminum suspension linkage, left-side dropout interface/brake mount, and cable management inserts machined in house to ensure the highest precision for alignment and component fitment. Contact us for sizing & availability Lead time 4-6 weeks. KEY FEATURES FRAMESET WEIGHT: 1950 grams (Large, w/Rockshox SID Ultimate rear shock) GEOMETRY: A slacker front headtube angle for predictable handling at speed across buff and technical terrain. A longer front-to-center measurement shifts the weight of the rider further behind the front wheel for more control to maneuver at high speeds. SUSPENSION: Designed for 120mm front and rear travel. Flex stay w/ kinematics designed for pedaling efficiency (100mm & 110mm suspension compatible). COMPATIBILITY: Cable management at the headtube allows for easy compatibility across components, including dropper posts and remote lockouts. Threaded BSA BB. BOTTLE MOUNTS: Capable of carrying 2, 1 on the downtube and 1 on the seat tube. TIRE CLEARANCE: 29x2.4 Custom paint options start at €5200. Please contact us for pricing and lead times. Frameset includes rear shock & headset. See the geometry chart and read more about the Allied BC40 Need help choosing? We're here to help.
