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. The 42/29 SL is your ultimate all-around wheelset. 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.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 performanceReserve 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 AeroAll Reserve wheels are built around a simple principle: they have your back. That means no rider weight limits, an industry-leading Lifetime Warranty, safe semi-hooked rim designs and comprehensive customer serviceRace-ready SL carbon tubeless rims with semi-hooked design, recommended tire dimensions 29 - 40mmSL wheels come with Vonoa carbon spokes and are only available together with Reserve's lightest Tune Pico series hubsets with 24hIncludes XDR and HG11 freehub bodies, Centerlock rings, spare carbon spokes, Filmore valves and rim tapeItem SpecificationsCassette Body TypeShimano HG 11/12-Speed RoadCassette Body TypeSRAM XDRColorCarbonDefined ColorBlackFront Axle12mm Thru x 100mmHub/Brake CompatibilityCenter-Lock DiscISO Diameter622 / Road / 29"Rear Axle12mm Thru x 142mmRim MaterialCarbonRim Width (Internal)24.8Rim Width (Internal)25.4Tire TypeTubeless ReadyValvePrestaWheel Size700c Reserve Wheels Reserve 42/49 SL Turbulent Aero Wheelset Wheelset UPC: 192219524221