20 Inch Carbon Fiber Tubular Bike Rims – 700C U-Shape, OEM/ODM Available

20 Inch Carbon Fiber Tubular Bike Rims (700C) — OEM & ODM Supply

These 700C carbon fiber tubular rims are engineered for competitive road cycling, endurance racing, and premium wheelset builds. With a U-shape rim profile and carbon fiber hub construction (front: 2 bearings, rear: 5 bearings), they deliver a balanced combination of lateral stiffness, low rotational weight, and responsive handling — making them a practical choice for cycling brands, professional teams, and performance-focused individual riders.

Key Specifications

Performance Characteristics

• Lightweight carbon fiber construction reduces rotational mass, directly contributing to faster acceleration and sustained high-cadence efficiency.
• U-shape rim profile provides reliable tire seating and stable aerodynamic behavior across a range of road conditions.
• Tubular rim design eliminates the clincher bead interface, resulting in a lower risk of pinch flats and consistent performance at race-level tire pressures (typically 100–170 psi).
• Multi-bearing hub system (2 front / 5 rear) supports smooth power transfer and durability under repeated load cycles.
• OEM and ODM capability allows cycling brands to specify custom graphics, drilling patterns, or rim depth to match their product line requirements.

Tradeoffs to Consider

Tubular rims require gluing or taping the tire to the rim bed — a process that demands more preparation time than clincher or hookless tubeless setups. However, this construction offers superior ride quality and flat resistance at racing pressures, which is why tubular wheels remain the preferred choice for professional road racing and criterium events. Riders or brands new to tubular systems should factor in installation time and spare tire logistics.

Who These Rims Are For

• Cycling brands (OEM/ODM): Minimum order of 308 pairs with a 26-day lead time; custom branding and specification available.
• Professional cycling teams: High-stiffness carbon construction suited for road racing, time trials, and criteriums.
• Performance cyclists: Seeking a lightweight, durable tubular rim compatible with 700C tubular tires for competitive or endurance use.

Frequently Asked Questions

What is the difference between tubular and clincher carbon bike rims for racing?

Tubular rims bond the tire directly to the rim using adhesive, removing the need for a hooked bead wall. This allows higher tire pressures, reduced rolling resistance, and a lower risk of catastrophic flat failure — advantages that make tubular the standard in UCI professional road racing. Clincher rims are easier to service in the field and require no gluing, but typically run at lower pressures and add a small weight penalty from the bead seat structure.

Are 700C and 20-inch the same rim diameter?

In road cycling, '700C' refers to the ISO bead seat diameter of 622 mm, which corresponds to the standard wheel size used on road and performance bikes. The '20 inch' designation in some regional markets refers to the same standard. Always verify ISO/ETRTO compatibility with your fork and frame dropout specifications before ordering.

How do carbon tubular rims improve speed and handling?

Carbon fiber's high stiffness-to-weight ratio reduces flex during hard cornering and sprint efforts, translating input force more directly into forward motion. The lower rotational mass of a carbon tubular rim compared to an aluminum equivalent reduces the energy required to accelerate the wheel, measurable in watt savings over sustained efforts.

What OEM and ODM customization options are available?

Bola Sporting Goods supports custom rim depth, spoke hole count, surface finish (matte or gloss), and branded decal application. Contact the sales team directly to discuss specification sheets and prototype timelines for your brand's requirements.

What is the minimum order quantity and lead time?

The standard MOQ is 308 pairs with a lead time of 26 days. Contact us for smaller trial orders or expedited production scheduling.

Specifications listed are reference values. Contact Bola Sporting Goods Co. Limited for confirmed technical data sheets, ISO certification documentation, and customization pricing.