700c Carbon Rim 80mm Deep | 34mm Wide UV Shape | Triathlon & Ironman Racing

Explore the Superior Performance of the 700c 80mm Deep Carbon Rim

The 80mm deep, 34mm outer-wide UV-shape carbon rim delivers a measured aerodynamic profile purpose-built for flat to rolling triathlon and Ironman courses. Available in two outer widths — 34mm and 30mm — with a 23mm inner width optimised for 25–28mm tubeless or clincher tyres. Weight runs 580–610 g per rim (±15 g tolerance), competitive with comparable aero rims in the 560–620 g range.

Key Specifications

Structural Integrity & Load Testing

• Forward Compressive Strength: >300 kg
• Lateral Torsion Resistance: >50 kg
• Spoke Hole Tension: >280 kg

Each rim is individually tested for flatness, roundness, and spoke-hole tension before dispatch, reflecting a manufacturing process refined over a decade of supplying professional cycling teams and OEM brands across Europe and North America.

UV Shape vs. Toroidal — What It Means for Racing

The UV (also referred to as toroidal or U-V) profile features a rounded outer edge that smooths airflow re-attachment at yaw angles common in open-road racing (5°–15°). Compared to a traditional box-section rim, the UV shape reduces measured drag at crosswind yaw. The 34mm outer width further widens the tyre-to-rim interface, reducing tyre-induced turbulence. Trade-off note: at 80mm depth, side-wind handling demands increase in gusting conditions above 30 km/h crosswinds — a factor to consider for lighter riders (<65 kg) in exposed Ironman courses.

Customisation Options

• Hole diameters (valve, spoke, assembly) available in custom sizes
• Nipple direction configurable per axle position
• Compatible with tubeless, clincher, and tubular setups
• OEM branding and colourway available for team and brand orders

Frequently Asked Questions

What rim depth is best for an Ironman bike build?

For flat to moderately rolling Ironman courses, an 80mm deep rim offers a strong aerodynamic return. Most athletes and coaches target 60–90mm depth for time-trial and triathlon disciplines where sustained speed outweighs handling variability. Riders in consistently windy conditions may prefer 60–65mm for a better crosswind margin.

Is the 34mm wide carbon rim better than 30mm for triathlon aerodynamics?

The 34mm outer width pairs best with 25–28mm tyres, aligning the rim-to-tyre transition for reduced aerodynamic drag. The 30mm option suits 23–25mm tyres and saves approximately 30 g per rim. For most modern triathlon setups running 25mm+ tyres, the 34mm profile is the recommended choice.

How heavy should a 700c carbon rim be for a triathlon wheelset?

Competitive 80mm carbon rims typically weigh between 560 g and 650 g. At 580–610 g, this rim sits within the performance bracket, balancing aerodynamic depth with rotational mass suitable for Ironman and Olympic-distance racing.

What does UV shape mean compared to a standard box-section rim?

UV shape describes a toroidal (rounded) outer rim profile. Unlike a squared box-section, the curved surface improves airflow re-attachment at varied yaw angles, reducing aerodynamic drag in crosswind conditions common on open triathlon courses.

Are these rims compatible with tubeless tyres?

Yes. The 23mm inner width and 6.5mm valve hole are compatible with tubeless and tubeless-ready tyre systems. Confirm hook or hookless compatibility with your specific tyre brand before assembly.

Advanced Aerodynamics and Enhanced Speed

The 700c 80mm deep carbon rim is engineered for cyclists seeking superior speed and aerodynamic advantage. Its deep 80mm profile reduces air resistance, improving momentum during triathlon and Ironman racing. The 34mm width offers a balanced surface area that enhances crosswind stability and tire compatibility. These features work together to ensure smooth airflow around the wheel, helping athletes maintain high speeds with less effort. This rim is ideal for riders who demand performance and reliability in every race.

Durability and Lightweight Construction

Crafted from premium carbon fiber, this 700c 80mm deep carbon rim offers an outstanding strength-to-weight ratio. The material provides robust durability to withstand the challenges of long-distance triathlon and Ironman courses while maintaining a lightweight design for efficient climbing and acceleration. Its UV-shaped cross-section not only improves aerodynamic profile but also contributes to the rim’s structural integrity, ensuring a consistent, responsive ride across varied terrain.

Optimized for Triathlon and Ironman Racing

Designed specifically for the demands of triathlon and Ironman competitions, the 700c 80mm deep carbon rim delivers precise handling and robust performance. The 34mm wide UV shape accommodates wider tires, enhancing comfort and grip without sacrificing speed. This rim balances aerodynamic efficiency with practical versatility, making it an excellent choice for athletes who need to perform well in different race conditions. Its optimized design supports maximum power transfer and confidence on the road.

Advanced Aerodynamics and Deep Rim Design

The 700c 80mm deep carbon rim is engineered to optimize aerodynamic efficiency, making it ideal for triathlon and Ironman athletes. The 80mm depth significantly reduces air drag, allowing cyclists to maintain higher speeds with less effort. This depth profile is perfect for flat to rolling terrains, where maintaining momentum is key. By combining this design with a lightweight carbon build, riders experience not only performance boosts but also improved control and stability in various wind conditions.

Wide 34mm UV Shape for Enhanced Stability and Comfort

This carbon rim features a 34mm wide UV-shaped profile that enhances tire integration, providing better stability and comfort on long rides. The wider internal width accommodates larger tires, improving traction and shock absorption without sacrificing speed. The UV-resistant carbon material ensures durability and longevity, protecting the rim from sun damage and environmental wear. Triathletes benefit from this by experiencing consistent ride quality and confidence during intense endurance races.

Durability and Lightweight Construction for Racing Excellence

Built with high-quality carbon fiber, the 700c 80mm deep carbon rim offers an excellent strength-to-weight ratio. This construction reduces the overall wheel weight, resulting in quicker acceleration and easier hill climbs without compromising durability. The rim is designed to withstand the rigors of Ironman and triathlon racing conditions, including changes in weather and road surfaces. Its robust construction paired with aerodynamic advantages delivers a competitive edge for serious cyclists seeking peak performance.