Reserve 42|49 Turbulent Aero SL|Tune Carbon Spoke CL Wheelset

Lose every possible gram of weight, without losing any of the strength or reliability that Reserve is known for. Carbon spokes, lifetime warranty, no-fault crash replacement and no restrictions on rider weight or tire choice. This is your ultimate all-around wheelset. 

Fast enough for Pauline Ferrand-Prévot to take the GC and the yellow jersey at the 2025 Tour de France Femmes.

Our SL wheels come with carbon spokes and are only available together with our lightest hubsets. 

The Wheel for Race Day, Everyday
From your lunch ride to Pauline Ferrand Prevost’s Tour winning efforts, this wheelset is the silver bullet. 42|49 is light enough to climb and gives you just enough depth to cut through wind without giving up control.

Lighter & Stronger
Built to be as light as possible—without trading away strength, stiffness, or durability. Carbon spokes, purpose-built hubs, and an advanced SL rim layup work together as a system. Less weight. No shortcuts. Pure performance.

Turbulent Aero
Reserve’s aerodynamic protocol uses real-world wind data to develop wheels that are both faster and more stable on the road, not just the wind tunnel. More speed. More control. Turbulent Aero.

Built for a Lifetime
All Reserve wheels are built around a simple principle: we have your back. That means no rider weight limits, an industry-leading Lifetime Warranty, safe semi-hooked rim designs and comprehensive customer service.

Designed For: Aero Performance for All Day Rides
Wheelset Weight: Tune - 1,290g
ERD: 556mm (42 SL) , 542mm (49 SL)
Inner Width: 25.4mm (42 SL), 24.8mm (49 SL)
External Width: 34.4mm (42 SL), 32.1mm (49 SL)
Depth: 42mm , 49mm
Offset Rear: 1.8mm
Recommended Tire Dimensions: 29 to 40mm
Rim Weights: 345g (42 SL), 385g (49 SL)
Spoke Count: 24
Hub Spacing: 12X100mm/12X142mm
Freehub Options: XDR + HG-EV
Disc Style Option: Centerlock

SKU: 89-29642