Reserve 42|49 SL Turbulent Aero Wheelset

The Reserve 42|49 SL Turbulent Aero Wheelset represents the pinnacle of all-around cycling performance, engineered to eliminate every possible gram of weight without sacrificing the strength, reliability, or versatility that define Reserve’s wheelset philosophy. Built with carbon spokes, purpose-built ultralight hubs, and an advanced SL rim layup, this wheelset proved its race-winning capability when it carried Pauline Ferrand-Prévot to the GC and yellow jersey at the 2025 Tour de France Femmes.

The asymmetric 42mm front and 49mm rear rim depths strike an ideal balance between climbing efficiency and aerodynamic performance. This carefully chosen depth pairing delivers a wheelset light enough to excel on steep climbs while providing meaningful aerodynamic advantage without compromising control or stability in variable wind conditions. The result is a true all-around wheelset equally at home on fast group rides and decisive race-day efforts.

Reserve’s Turbulent Aero protocol sets the 42|49 SL apart from conventionally optimized wheels. Rather than focusing solely on wind tunnel drag numbers, Reserve leverages real-world wind data to shape rims that are both faster and more stable in the constantly changing conditions riders actually encounter on the road. This real-world approach delivers measurable speed gains while improving predictability and confidence when conditions are less than ideal.

The carbon spoke construction functions as an integrated system with the advanced SL rim layup and purpose-built ultralight hubs, achieving minimal weight without compromising stiffness, strength, or durability. This holistic engineering approach avoids the compromises often seen in ultralight wheels, resulting in a wheelset that climbs with exceptional responsiveness while maintaining the lateral stiffness required for sprinting, hard accelerations, and aggressive cornering.

Reserve backs the 42|49 SL with an uncompromising reliability commitment, including no rider weight limits, an industry-leading lifetime warranty, no-fault crash replacement, and unrestricted tire compatibility. The safe semi-hooked rim design ensures compatibility with modern tubeless systems while maintaining robust safety margins. 

Key Features

• Carbon Spoke Construction - Advanced SL rim layup with purpose-built ultralight hubs delivers minimum weight without sacrificing strength or stiffness
• Turbulent Aero Protocol - Real-world wind data optimization delivers increased speed and enhanced stability on actual roads
• 60g lighter - Refined manufacturing techniques pull an additional 30g off each rim, shaving 60g off your wheelset