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Reynolds Assault SLG Carbon Wheelset - Tubeless


Item # REY003F

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Item # REY003F

Explore new roads.

The days of relegating road bikes to strictly smooth pavement surfaces are over, with riders and manufacturers proving that all-road adventuring is the next frontier in enjoying a well-rounded cycling lifestyle. As such, we need a wheelset like Reynolds' Assault SLG Carbon Tubeless Wheelset that can keep up with our more spontaneous ride route choices. Newly updated with stealthy waterslide graphics for an extra dose of style watts, the Assault's 41mm profile hits the sweet spot between low weight and aerodynamics, bringing Reynolds' renowned crosswind stability to nearly any all-road application.

Whether you're winding up for the rolling hills of a coastal road race, rocketing through Vegas' legendary sand pit, or packing up for a weekend of mountainous multi-surface adventuring, the Assault is up to the challenge. An all-new hubset builds on this wheelset's famed versatility with smooth, fast turns and even quicker engagement than its predecessor for a ride that rivals the responsiveness more often found in wheelsets at much higher price points.

Traditionalists among us will appreciate the ability to run the Assault as a tube-type clincher, and for those of us looking to ditch tubes, the rims' redesigned shelves and hooks hold a tubeless tire securely at low or high PSI. The lower rolling resistance and comfort of a tubeless ride is complemented by the Assault's wide rim, which lets tires sit with more volume in a way that Reynolds calls "modern" but we call less rolling resistance, better cornering, and a more comfortable ride.

The new Assault also sees an update to Reynolds Cryogenic Glass Transition (CTg) brake track technology, with a taller profile and reworked resin system that extends past the brake track and into the rim to provide exceptional heat dissipation, all but eliminating the risk of the rim deforming or failing under long, hard brake use. Each Assault wheelset also includes Reynolds' proprietary Cryo-Blue Power brake pads, which work with the CTg laminate to produce more consistent (read: safer) braking. Safety is also improved through Reynolds' PR3 construction method, which uses different carbon fiber, epoxy, and resin for each of five rim regions.

Last, but far from least, the Assault utilizes Reynolds' Enhanced Swirl Lip Generator (SLG) design. There's a heap of wind tunnel tech behind SLG, but in a nutshell Reynolds adds a small lip of carbon on each side of the rim near the spoke connection points. The lip streamlines airflow across the spokes to reduce drag, and this iteration of SLG comes with claims of a 35% improvement in aerodynamics over the smaller original design. Long story short, SLG just makes these wheels faster.

  • An all-rounder, tubeless clincher wheelset
  • Carbon construction balances responsiveness and weight
  • Moderate rim depth blends stability and aerodynamics
  • Rim width increases tire volume for more traction and cushion
  • Updated hubset rolls smooth with faster engagement
  • 2x rear spoke lacing increases stiffness and responsiveness
  • Includes Reynolds' proprietary Cryo-Blue Power brake pads
  • Includes tubeless valves and tape

Tech Specs

Rim Material:
carbon fiber
Wheel Size:
Tire Type:
tubeless, clincher
Rim Depth:
Rim Width:
[internal] 17mm, [external] 25mm
Brake Compatibility:
Front Axle:
Rear Axle:
Sapim CX Sprint
Spoke Nipple:
external alloy
Spoke Count:
[front] 20, [rear] 24
Claimed Weight:
[front] 670g, [rear] 845g, [set] 1515g
Recommended Use:
Manufacturer Warranty:
limited lifetime

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The only wheel you need!

  • Familiarity: I've put it through the wringer

These. wheels. are. incredible. Insanely fast rolling, super stiff and shockingly quick and reliable braking power. Having ridden a number of carbon wheels in the past for races, I usually tried to use my brakes as little as possible (as one does in a race scenario, right?) but I always found that in my moments of need, all carbon wheels I had used in the past have had terrible braking power. Slow to bite and unreliable in wet conditions, I was at first nervous to invest in a carbon wheel upgrade. All doubts were put to rest on my first ride on these wheels. I was shocked at the extremely quick and efficient braking power and very little screeching noise upon braking. I am currently running these wheels with tubes on my road bikes but I love the ability to easily go tubeless and ride gravel/ cross on these bad boys. The wheels are lightweight, fast rolling and a very very smooth ride. These wheels have truly transformed my bike and riding experience. 41mm depth is easily manageable in crosswind and aerodynamic enough to race or every day training rides. I slapped an 11-25 Ultegra cassette on there and now I'm always stoked to ride up a big climb.

Extra side notes:

-Wheels come with QR, tubeless valves, tape and brake pads.

-Reynolds now has a lifetime warranty on 2017 model wheels and all wheels going forward.

-Warranty registration can be found here:

The only wheel you need!