The Reserve 40 Zipp ZR1 ST Carbon Front Wheel is the versatile performer of the Reserve lineup — a wheel designed for all-round speed, confident handling, and smooth stability across varied conditions. With a 40 mm rim depth, it bridges the gap between lightweight climbing wheels and deep-section aero sets, making it the ideal front wheel for fast-paced road rides, rolling race profiles, and long endurance miles where balance is everything.

Built using Reserve’s proprietary carbon lay-up process, the 40 mm rim offers a carefully tuned combination of lateral stiffness and vertical compliance. The aerodynamic profile has been shaped to remain stable through yaw, giving you confidence in gusty crosswinds while still slicing efficiently through headwinds and open road stretches. The internal width is optimized for 25–30 mm tires, offering a wider footprint for improved grip, lower rolling resistance, and comfort on imperfect pavement — whether you’re chasing speed or just chasing the horizon.

At the core of this wheel is Zipp’s ZR1 ST hub — precision-engineered in Germany for smooth, durable performance. The hub features fully sealed cartridge bearings and a lightweight alloy shell that keeps rotation friction to an absolute minimum. Its refined flange geometry promotes balanced spoke tension and responsive handling, giving the front end of your bike a precise, confident feel through corners and high-speed descents alike. The ZR1 ST hub complements Reserve’s carbon expertise perfectly, combining mechanical precision with aerodynamic calm.

Each Reserve 40 front wheel is hand-built with Sapim CX-Ray bladed spokes and carefully balanced tension, ensuring even load distribution and long-term reliability. The tubeless-ready, hookless rim design simplifies tire setup and allows lower pressures for better compliance and control. Lightweight, fast, and exceptionally stable, this wheel captures the essence of Reserve’s real-world aero philosophy — speed that feels effortless, control that feels natural. Whether you’re climbing into the wind, descending in the drops, or gliding through rolling roads, the Reserve 40 ZR1 ST front wheel delivers precision in every turn and confidence in every mile.