The RD1 handlebar is designed for serious road cyclists who demand performance during long rides and competitive finishes. Built as a one-piece bar and stem with full carbon construction, it delivers strength, a streamlined aerodynamic profile, and responsive ride characteristics. Tested extensively in the wind tunnel, the RD1 is 29 seconds faster over 40km when compared to other bars tested. Cables are routed fully internally to maximize aerodynamic gains, and the handlebar is engineered for performance stiffness and aerodynamic efficiency. Built around the Acros ICR headset standard, it is compatible with most bikes that use an oversized 52mm upper headset bearing. The RD1 has no rider weight limit and is backed by a Lifetime Warranty, giving you peace of mind that Reserve will work to get you back on your bike as quickly as possible if you experience any issues during normal riding conditions.