2026 Reserve Wheels 40|44 GR Wheelset
Reserve WheelsAero gravel performance for drop-bar racing, with real-world speed, stability, and profiles optimized for wider tires.
Bringing cutting-edge performance to the diverse needs of off-road drop-bar riders, 40|44 GR gravel wheels are tailored for the demands of gravel riding with an aero focus. Leveraging Turbulent Aero technology, 40|44 GR wheels feature a 40 mm front rim paired with a 44 mm rear rim, making it an obvious choice for anyone looking for more speed on and off the pavement.
Wider than our previous gravel wheels to allow for tires up to 50mm, 40|44 GR play nicely with modern high-volume gravel tires, and a semi-hooked bead makes tire selection and tubeless setup easier than ever. Like all Reserve wheels, the 40|44 GR wheels have a lifetime warranty, supported by a no-fault crash replacement. In keeping with Reserve's sensible ways, you’ll find external nipples, standard spokes and no rider weight limits.
What's in the Box
- 1x Complete wheelset
- XDr + HG-EV driver (DT 180 only)
- 32mm Reserve Rim Tape (installed)
- 2x 70mm Fillmore Tubeless Valves (un-installed)
- User Manual
Mixed Profile Front and Rear
The mixed profile front and rear setup of the 40|44 GR provides for maximum stability, lowest weight and optimized aerodynamics.

No Fuss Design
The 40|44 GR is designed to be your no fuss aero gravel riding and racing wheelset. There are no weight limits, no tire limitations, and can be set up tubeless or with tubes.

Internal Spoke Reinforcements
Reserve uses internally reinforced spoke holes to strengthen the area where the rim sees the most force, around the spoke nipple. This provides for improved strength without adding unnecessary weight.

DT 350 Hub

DT 180 Hub
- Designed For:
- Gravel Riding and Racing
- Wheelset Weight:
- DT 180 - 1376g , DT 350 - 1454g
- ERD:
- 560mm, 552mm
- Inner Width:
- Front 27.4mm, Rear 27mm
- External Width:
- Front 36mm, Rear 34.4mm
- Recommended Tire Dimensions:
- 35 to 55mm
- Spoke Count:
- 24
- Hub Spacing:
- 12X100mm/12X142mm
- Freehub Options:
- XDR, HG-EV
- Rim Weight:
- 400g - 40 GR, 425g - 44 GR
- Tire Compatibility:
- Tubeless, Clincher
- Disc Mounting Option:
- Centerlock
- Asymmetric Offset Rear:
- 2.7mm