Profile Design GMR 38 Carbon Tubeless Rim-Brake Wheelset | Wheel Sets

The GMR 38mm rim depth makes for a great all rounder. If you’re looking for a wheelset for every day use, particularly if your riding conditions are often windy, this is the one. The 38mm height offers a great aero boost over a standard alloy wheelset but doesn’t add so much side area that the wind can push you around.

Of course, the shallower rim is also lighter, so it’s well suited to hilly terrain.

The GMR 38 Tubeless Rim-Brake is optimized for wide tires with lower tire pressure to meet the performance needs of modern riders in search of low rolling resistance and high compliance. With an internal width of 19mm, the wheelset is well suited for rough roads and tests fastest with a 28mm tire in the majority of wind angles.

Brake Performance

Specifically formulated to withstand the same heat our rims can take on, our brake pad compound is exclusive for GMR Series wheelsets. Using a specially formulated rubber compound, durometer and friction agent, we developed a proprietary brake pad and reduced braking distances over that of other carbon fiber wheelsets.

Specifications

Specifications

38mm rim depth for a balance between aerodynamics and control.

High temperature resin for consistent braking on long descents.

Extra stiff hub shell design.

Proprietary precision machined alloy hubs.

Sapim CX-Ray spokes with Sapim Polyax double square nipples.

Sealed cartridge bearings.

Hand-built assembly.

Clincher, Tubeless Ready.

Rim brake.

Weight: 640g

Diameter: 700c

Hub: 6061-T6 Alloy

Bearing Size: 6901

Hub Compatibility: QR

Rim Depth: 38mm

Rim Width (Outside): 26mm

Rim Width (Inside): 19mm

Color: UD Carbon

Spokes: Sapim® CX-Ray Aero Spoke

Spoke Shape: Straight Pull, Bladed

Spoke Count: 20

Spoke Pattern: Radial

Spoke Length: 272mm

Nipples: 7075 Alloy Polyax Double Square

External Nipples: Yes

Tire Compatibility: Tubles Ready (TLR) / Clincher

Max Tire Pressure: 70-100psi (also refer to Tire sidewall)

Tire Width: 700c x 28-38mm

Rear Wheel

Weight: 830g

Diameter: 700c

Hub: 6061-T6 Alloy

Bearing Size: 6802

Hub Compatibility: QR

Cassette Compatibility: Shimano/SRAM: 9/10sp, 11sp

Rim Depth: 38mm

Rim Width (Outside): 26mm

Rim Width (Inside): 19mm

Color: UD Carbon

Spokes: Sapim® CX-Ray Aero Spoke

Spoke Shape: Straight Pull, Bladed

Spoke Count: 24

Spoke Pattern Non-Drive: Radial

Spoke Pattern Drive: 2 cross

Spoke Length Non Drive: 273mm

Spoke Length Drive: 280mm

Nipples: 7075 Alloy Polyax Double Square

External Nipples: Yes

11-Speed Compatible Hub: Yes

12-Speed Compatible Hub: Yes w/ (Aftermarket XDR Freehub purchase)

Tire Compatibility: Tubles Ready (TLR) / Clincher

Max Tire Pressure: 70-100psi (also refer to Tire sidewall)

Tire Width: 700c x 28-38mm