42|49 SL Turbulent Aero

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42|49 SL Turbulent Aero

€3,499.00 EUR

Wheel Size 700c

Hub Tune Carbon Spoke

Freehub XDR & HG / Centerlock

This is your ultimate all-around 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.

Turbulent Aero design keeps the handling smooth while delivering class-leading aerodynamic gains by pairing the shorter front rim with a taller rear rim. More speed, with more control.

Fast enough for Pauline Ferrand-Prévôt 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 paired with our lightest hubsets.

*XDr & HG driver bodies, centerlock rings and spare carbon spokes included.

See Full Specs

Engineered to take you further, faster, for longer.

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.

Details

Designed For Aero Performance for All Day Rides

Wheelset Weight Tune - 1,290g

Rim Weight 365g (42 SL), 415g (49 SL)

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

Rim Bead Semi-hooked

Recommended Tire Dimensions 29 to 40mm

Spoke Count 24

Hub Spacing 12X100mm/12X142mm

Freehub Options XDR + HG-EV

Disc Style Option Centerlock

FAQ

What is the maximum pressure for your rims?

Road rims: 100 psi (6.9 bar). Gravel rims: 80 psi (5.5 bar).

Always defer to the tyre manufacturer's stated maximum if it is lower than the rim's — the lower of the two figures is the one to run.

Can you build me a wheelset if I send you my hubs? Do you sell rim-only?

Yes. We offer a full wheelbuilding service at Legend Bikes — send us your hubs, or choose hubs with us, and our workshop will build them to your Reserve rims. We also sell rim-only options if you'd prefer to have the wheels built elsewhere. Get in touch and we'll talk through spoke count, lacing and hub compatibility for your bike.

Where can I find more tech spec information?

The full technical specification for this wheel — ERD, rim widths, spoke count, hub spacing, freehub and rotor options — is listed in the Details section further down this page. If you need a figure that isn't there, contact us and we'll get it for you.

What's included in the box?

Complete wheelset:

• Fillmore valves

• Rim tape (fitted)

• User manual

Rim only:

• Fillmore valves

• Rim tape (not fitted)

• User manual

Who is the manufacturer on record?

Manufacturer:

Santa Cruz Bicycles, LLC