Top-Fire 50mm Deep, 30mm Wide Carbon Road Bike Wheelset

Top-Fire 50mm Deep, 30mm Wide Carbon Road Bike Wheelset

Features of 700C Carbon Fiber Road Bike Wheels

The 50mm rim depth is designed not only for speed but also to minimize the impact of crosswinds. You’ll ride more confidently on exposed roads, with reduced wobble or steering corrections, which is especially helpful for long-distance or team rides. With a 30mm internal width, these wheels support wider tires without compromising shape. You’ll notice improved grip, more predictable cornering, and lower rolling resistance, addressing common complaints about narrow rims limiting tire choice and comfort. High-modulus carbon fiber provides strength where it’s needed while keeping overall weight low. You’ll climb hills more easily and enjoy faster accelerations, while durability ensures these wheels withstand heavy training, rough surfaces, and repeated shipping for B2B orders. Top-Fire wheels are designed for brands and shops, allowing logo placement, spoke configurations, and hub options. You’ll meet diverse customer demands with a product ready for direct branding, reducing sourcing complexity and improving business flexibility.

*All of our carbon road rims fit this lightweight hub.

Specifications of 50mm Carbon Road Bike Wheels

Performance Testing of Carbon Road Bicycle Wheels
Rim UCI Impact Test
This test simulates the impact a rim may face during extreme riding conditions. With the rim set up without spokes, a vertical free-fall impact is applied directly to the spoke hole area, in accordance with UCI standards.
Result: The rim withstood the repeated impacts without cracks or structural damage, fully meeting UCI certification requirements.
Rim Positive Rigidity Test
Rigidity testing evaluates how the rim responds when subjected to vertical loads. In this test, the rim was mounted on a machine and subjected to increasing loads of 10 kg, 20 kg, and 30 kg. The corresponding deformation was measured at each stage, and the stiffness values were calculated.
Result: The rim achieved an average rigidity of 197.3 N/mm. The rim maintained stable stiffness across different loads, ensuring excellent responsiveness and stability for high-performance riding.
Walking Fatigue Test
The walking fatigue test simulates long-term riding conditions to evaluate rim durability under repeated impact. In this test, the rim was run at a constant speed of 40 km/h while the tire struck obstacles measuring 10 mm in height and 50 mm in width. The setup included a load of 64 kg, a swing angle of 5°, and tire pressure at 90% of the maximum rating. Over the course of the test, the rim experienced approximately 900,000 continuous impacts.
Result: After 12 hours and 58 minutes of testing, covering a distance of 535 km, the rim showed no abnormalities in its structure, tire mounting area, or outer circle. These results confirm the rim’s outstanding fatigue resistance and reliability for long-term cycling performance.
Rim Spoke Tension Test
Spoke tension testing ensures the rim can handle high spoke pulling forces during wheel assembly and real riding conditions. The rim was tested at multiple spoke tension levels up to 500–600 kgf.
Result: The rim withstood high spoke tension without abnormalities, proving its reliability in heavy-load and competitive environments.

Top-Fire Unique Manufacturing Technology for Carbon Fiber Road Wheels

EPS Molding: Integrated Structure for Strength and Safety
Top-Fire uses EPS (Expandable Polystyrene System) molding to create a hollow core structure within the carbon fiber rim. This one-piece molding process minimizes seams and air bubbles that can occur in traditional manufacturing. The result is a stronger, more reliable wheelset that provides long-lasting durability and enhanced safety, especially for riders tackling high-intensity or long-distance rides.
Precision Molds and Heat Pressing: Ensuring Accuracy and Consistency
During production, pre-formed carbon fiber sheets are carefully placed into precision molds and heat-pressed at 155±5℃ for one hour. This process guarantees dimensional accuracy and structural consistency across every wheel, providing stable performance and reliability for professional cyclists and demanding B2B applications.
Multi-Stage Post-Processing: Improved Surface Quality and Compatibility
After initial molding, the rims undergo secondary heating, sanding, drilling, and polishing. A secondary heat treatment at 150±5℃ for 2.5 hours relieves internal stress, enhancing rim stability. Precise drilling and surface finishing ensure perfect compatibility with hubs, tires, and brake systems, addressing common issues with fit and performance.
Rigorous Quality Inspection and Testing: Performance You Can Trust
Every carbon wheel is subjected to impact testing, fatigue testing, and rigidity checks. These quality controls ensure the rims perform safely and consistently under all riding conditions, meeting the high standards expected by professional riders, bike shops, and OEM clients.

OEM Custom Options for Carbon Road Wheels

Custom Branding and Logo Placement
With Top-Fire carbon road wheels, you can easily add your brand logo or custom graphics. You’ll have the flexibility to choose placement, color, and size, giving your products a unique look that stands out to your customers. This is ideal for bike shops, teams, or brands looking to create signature wheelsets.
Hub and Spoke Configurations
You can select hub types, axle standards, and spoke patterns to match your specific riding or market needs. By customizing these components, you’ll provide wheels that meet performance expectations, whether for endurance rides, racing, or casual cycling.
Rim Depth and Finish Options
Top-Fire allows adjustments in rim depth and surface finish. You can offer matte, glossy, or carbon weave finishes to appeal to different rider preferences. This level of customization ensures your wheelsets fit your product line or customer requests without compromising performance.

B2B Order Flexibility
Minimum order quantities are competitive for small or large batches.
Wheels can be pre-assembled or shipped as rims for assembly.
Custom packaging options support branding and safe delivery.
By leveraging Top-Fire’s OEM options, you’ll deliver carbon road wheels tailored to your customers’ needs, combining high performance with distinctive brand identity.

Applications of Carbon Road Cycling Wheels

Competitive Road Racing
Top-Fire 50mm × 30mm carbon wheels are ideal for road racing. You’ll gain better aerodynamics and speed, allowing you to maintain high performance on sprints and flat courses. The combination of lightweight design and stiffness ensures efficient power transfer, helping you stay ahead during races.
Endurance and Long-Distance Riding
These wheels provide comfort and stability for longer rides. You’ll experience less vibration and more control, even on rough surfaces. The 30mm internal width accommodates wider tires, giving you improved grip and reducing fatigue over extended distances.
Triathlon and Time Trials
For triathletes and time trial cyclists, stability and aerodynamics matter. You’ll benefit from the deep rim design, which reduces drag and improves speed consistency, while the strong carbon structure ensures safety under high loads and sustained efforts.
B2B and Custom Assembly
Bike shops and brands can use these wheels for full builds or upgrades.
They are compatible with a wide range of frames and braking systems.
Custom branding or assembly options allow you to meet specific customer preferences.

Why Choose Top-Fire 50mm Deep Carbon Road Wheels?

Proven Performance and Reliability
With Top-Fire 50mm deep carbon wheels, you’ll experience consistent performance across all rides. The combination of 50mm rim depth and high-modulus carbon fiber delivers efficient power transfer and enhanced stability, helping you ride faster while maintaining control in challenging conditions.

Optimized Aerodynamics and Handling
These wheels are engineered to reduce drag and improve crosswind stability. You’ll notice smoother airflow, which makes sprinting and long-distance riding easier. The 30mm internal width ensures better tire support, giving you confident cornering and traction on varying road surfaces.
Lightweight Construction for Climbing and Acceleration
Top-Fire wheels are light yet strong, so you’ll climb hills with less effort and enjoy quicker acceleration. The carbon structure maintains stiffness without adding unnecessary weight, addressing a common pain point for riders who need speed without compromising durability.
B2B-Friendly Features
Factory-direct supply ensures competitive pricing for shops and brands.
Customization options allow logos, decals, and hub configurations.
Tested quality standards give you confidence for resale or team builds.
Choosing Top-Fire 50mm deep carbon road wheels means you get speed, reliability, and versatility for both personal rides and professional B2B applications.

Our Factory

TOP-FIRE In Exhibition