ProX DT350 Gravel Carbon Wheels | Tubeless-Ready Wheelset Built for Gravel Adventures
| Wheel Model | 350DB-PCX33 | 350DB-PCX44 | 350DB-PZX33 | 350DB-PZX44 |
| Rim Sectional Drawing |  |
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| Carbon Rim Model | PCX33 | PCX44 | PZX33 | PZX44 |
| Carbon Rim Depth | 33mm | 44mm | 33mm | 44mm |
| Carbon Rim Width | 28mm Outer (21mm Inner) | 28mm Outer (21mm Inner) | 28mm Outer (23mm Inner) | 28mm Outer (23mm Inner) |
| Rim Bead | Hook | Hook | Hookless | Hookless |
| Carbon Rim Surface | UD Black Matte Finish | UD Black Matte Finish | UD Black Matte Finish | UD Black Matte Finish |
| Carbon Rim Material | Toray T700+T800 Carbon | Toray T700+T800 Carbon | Toray T700+T800 Carbon | Toray T700+T800 Carbon |
| Carbon Spokes | Pillar 1423 Sapim CX-Ray |
Pillar 1423 Sapim CX-Ray |
Pillar 1423 Sapim CX-Ray |
Pillar 1423 Sapim CX-Ray |
| Wheel Weight (+/-3%) | 1499g | 1399g | 1559g | 1459g | 1499g | 1399g | 1559g | 1459g |
| Front/Rear Hubs | DT350 | DT350 | DT350 | DT350 |
| Front/Rear Hub Size | 12x100mm/12x142mm | 12x100mm/12x142mm | 12x100mm/12x142mm | 12x100mm/12x142mm |
| Front/Rear Holes Count | 24H/24H | 24H/24H | 24H/24H | 24H/24H |
| Brake Type | Disc Brake (Center Lock) | Disc Brake (Center Lock) | Disc Brake (Center Lock) | Disc Brake (Center Lock) |
| Tire Type | Tubeless or Clincher | Tubeless or Clincher | Tubeless or Clincher | Tubeless or Clincher |
| Tire Size (Recommended) | 700x30C-50C | 700x30C-50C | 700x30C-50C | 700x30C-50C |
| Max Weight Limit | 120kg/265lb | 120kg/265lb | 120kg/265lb | 120kg/265lb |
Gravel bike carbon rims typically feature a shallower profile combined with increased width, sitting between traditional road and MTB rim designs. This series ProX gravel carbon rims are with a 21 mm internal width, making them compatible with 700×35C–50C gravel tires. Rim depth options 33 / 44 mm are available to suit different riding preferences. All rims incorporate angled spoke holes, allowing better alignment with hub flanges and reducing spoke stress during wheel building.
ProX offers two rim configurations for this series of carbon gravel rims: bead hook and hookless.
For riders using their gravel bike in a more MTB-oriented style, typically with tubeless tires at lower pressures (up to 50 psi), the hookless version is a suitable choice.
For those riding in a more road-focused manner and running higher tire pressures (up to 90 psi), the hooked option is recommended.
◂ Spokes ▸
Using popular Pillar PSR AERO 1423 spokes.
Pillar patented cold forge technology is applied in the spoke production which increase the strength up to 20%.
Perfect aero shape, high elasticity and low drag coefficient.
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Carbon Fiber Material Our carbon gravel rims are manufactured using premium Toray T700+T800 carbon fiber, combined with a stable resin system to ensure consistent quality and a lightweight structure for off-road cycling. |  |
Light Weight Design A carefully engineered lay-up structure using Toray T700+T800 carbon prepreg enables a lightweight carbon gravel rims. Excess material is minimized to reduce weight, while reinforcement around the spoke holes ensures structural strength. The result is low weight without compromising strength or stiffness. |
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Wider Inner Width With 21mm inner width (hook version) and 23mm inner width (hookless) , these carbon rims are optimized for modern 700×35C–45C tires and remain compatible with even wider tires. The increased width provides better tire support, simplifies installation and removal, and enhances traction and cornering stability. |  |
Aero U-Shape Profile The wide U-shaped rim profile offers improved aerodynamic efficiency compared to traditional V-shaped designs, helping to reduce drag at higher speeds. It also enhances airflow stability in crosswinds, while contributing to increased stiffness and overall structural strength. |
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Bead Lock Design Subtle ridges along both sides of the carbon rim channel—known as bead locks—help facilitate easier tubeless tire inflation. Combined with a hooked bead design, they ensure a secure tire fit and reduce the risk of blowouts. |  |
Tubeless Ready Tubeless setups are mainstream in for gravel wheelset due to improved grip, lower rolling resistance, and enhanced comfort. All of our gravel carbon rims are tubeless compatible while still supporting standard inner tubes. An optimized anti-burp profile ensures straightforward tire installation, removal, and inflation. |
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DT Swiss 350 HubsDT Swiss 350 disc brake hubs offer dependable performance at a competitive price point. Featuring the proven Ratchet System and straight-pull spoke design for efficient power transfer and long-term reliability. |  |
Pillar SpokesPillar PSR AERO 1423 spokes are a popular choice for performance wheelsets. Their patented cold forging process increases strength by up to 20%, while maintaining a lightweight aero profile. Effective combination of elasticity, durability, and aerodynamics. |
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Disc BrakeDisc brake provide more precise and consistent braking than rim brakes. These carbon rims are purpose-built for disc use, eliminating the brake track and avoiding heat-related issues. A dedicated carbon lay-up enhances durability while keeping weight low. |  |
2-Year Warranty Our production process includes strict quality control and comprehensive testing to ensure reliable performance. All ProX carbon rims and wheels are backed by a 2-year warranty from the date of delivery. Full details are on our Warranty Policy page. |
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