Reserve 42|49 Turbulent Aero

Real-World Stability. Unmatched Speed.

The Reserve 42|49 features a staggered rim profile: 42mm deep in the front for lightning-fast handling and crosswind stability, and 49mm deep in the rear for maximum aerodynamic efficiency and power transfer. By optimizing the two wheels independently, Reserve has created a set that feels like a shallow climber on the descents and a deep-section aero wheel on the flats.

Why the 42|49 is the Ultimate All-Road Wheelset:

• Turbulent Aero Technology: Developed using wind data from the real world, not just a wind tunnel. This design mimics "dirty" air to ensure the wheels don't "stall" or twitch when a gust hits, allowing you to stay in your aero tuck longer.

• Staggered Rim Depth: The 42mm front wheel is designed with a wider, blunter profile to prioritize control, while the 49mm rear wheel is narrower and deeper to minimize drag where the airflow is already disrupted by the bike and rider.

• Modern Inner Width: With a 25mm (front) and 24mm (rear) internal width, these wheels are optimized for 28mm to 30mm tubeless tires, providing lower rolling resistance and increased grip without an aero penalty.

• Life-Time Support: Reserve stands behind their carbon with a legendary lifetime warranty and a no-fault crash replacement policy. If you break them while riding, they replace them. No questions asked.

• Elite Hub Options: Typically laced to DT Swiss 180, 240, or 350 hubs, offering world-class engagement and the easiest-to-service internals in the industry.

• No-Tape Tubeless Setup: Features a semi-hooked rim bed that makes seating tubeless tires a breeze and eliminates the need for messy rim tape, further reducing weight and maintenance.

Technical Specifications:

• Depth: 42mm Front / 49mm Rear

• Internal Width: 25mm Front / 24mm Rear

• External Width: 34.4mm Front / 32.1mm Rear

• Spoke Count: 24 Front / 24 Rear

• Brake Interface: Centerlock Disc

• Weight: ~1,520g (with DT 180 hubs)

• Tire Compatibility: Tubeless Ready (optimized for 28c-30c)

The Alegro Perspective: In the shop, we call these "The Confidence Boosters." Most deep-section wheels feel amazing until you get hit by a side-wind or a passing truck; then they become a handful. The 42|49 Turbulent Aero set is remarkably "quiet" in the wind. You aren't constantly fighting the handlebars, which means you're fresher for the final sprint. Add in that lifetime warranty, and it’s arguably the smartest high-end wheel investment you can make.

Scientific Stability. Staggered Speed. Outrun the Chaos with Reserve.