SRAM XX SL Eagle Transmission Bike

Inspired by the legendary Back 40 trail system right here in Bentonville, 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 namesake trail demands a thoughtful bike like this due to its often unpredictably rocky surface, dynamic corners, and endless, punchy climbs. 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 SRAM XX SL Flight Attendant Bike is the ultimate hi-tech racer. It’s a rolling showcase for the XX SL Eagle Transmission and the new Flight Attendant suspension system. This build kit represents the pinnacle of SRAM’s racing technology. Flight Attendant actively learns how you ride and auto-adjusts your suspension on the fly. For every change in terrain, every change in gradient, and every change in the way that you pedal – you’ll hear your suspension adjust before you even realize there is a need. Flight Attendant maximizes your suspension’s capability to help you maximize your potential. Learn more about Flight Attendant.

• Recent improvements include 100g weight savings, stiffer rear 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
• In-house development and testing that included building our own testing methodology and machines as well as testing our competitors' bikes to benchmark performance and tearing them apart to weigh each component item
• Designed to stretch the capability of what a cross-country bike can do while making no compromises with weight and pedaling efficiency 
• Every piece of carbon is meticulously cut, stacked, formed, and molded to hit the highest possible quality standard
• 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
• Built to exceed the expectations of multi-time Olympians and national champions, for ultimate performance at the highest level of competition
• Inspired by decades of riding and racing, and purpose-built for the hundreds of miles of trails in our backyard