# Bola 700c Carbon Road Rim 45mm Height, 34mm Outer, 28mm Tubeless Ready The Bola 700c 45mm Carbon Road Rim is engineered for road and gravel riders demanding balanced aerodynamics, weight, and tire versatility. A 34mm outer and 28mm inner width supports 25–32mm tubeless tire systems, providing stability on paved and mixed-surface conditions. Verified weights (370–445g) are available across three build grades, with absolute tolerances for flatness (<0.15mm) and roundness, ensuring consistent wheel assembly for OEMs and teams. Fully compatible with disc-brake builds and custom spoke drilling. ## Explore the Features of the 700c 45mm Carbon Road Rim - **Rim Diameter:** 700c (ISO 622mm BSD) - **Profile Height:** 45mm - **Outer Width:** 34mm - **Inner Width:** 28mm - **Effective Rim Diameter (ERD):** 548mm - **Rim Shape:** Hooked U-profile, tubeless ready - **Valve Hole:** 6.5mm (customizable) - **Spoke Hole:** 4.5mm (customizable) - **Material:** High-modulus carbon fiber, UV-cure resin - **Weight:** 370–445g verified by build grade - **Compliance:** Forward compression >300kg, lateral torsion >50kg, spoke tension >280kg - **Warranty:** 3 years from purchase ## Performance & Use - Optimized for 25–32mm road and gravel tires, allowing riders improved comfort and efficiency across endurance, racing, and urban segments. - 28mm internal width accommodates modern tire casings for stability at lower pressures with tubeless setup. - Disc-brake ready; ideal for competition, training, and performance-oriented OEM partnerships. - Tight manufacturing tolerances (<0.15mm flatness) facilitate trouble-free building and longevity. - Dynamic balance <3g ensures smooth high-speed rotation, verified against industry norms. ## Comparison Table Attribute Bola 45mm Typical 45mm Carbon 700c Aluminum Rim Profile Height 45mm 45mm 30mm Outer Width 34mm 30–32mm 20–25mm Inner Width 28mm 22–25mm 17–19mm Weight 370–445g 390–470g 530–600g Disc Brake Ready Yes Varies Varies ## Frequently Asked Questions **Is a 45mm deep, 28mm inner width carbon rim good for both road and gravel riding?** Yes, the 45mm depth balances aerodynamic efficiency on pavement with crosswind stability, while the 28mm inner width safely supports both road (25–32mm) and gravel tires, ensuring versatility for mixed-terrain use. **How does a 700c 45mm carbon rim compare to an aluminum rim for endurance cycling?** Compared to aluminum, the Bola carbon rim offers a lighter (370–445g vs. 530–600g) and stiffer platform. While carbon costs more, it reduces fatigue by decreasing rotational mass and increases speed with its aerodynamic profile. **What tire sizes work best with a 34mm wide, tubeless ready carbon road rim?** 25–32mm tires (road/gravel) are optimal. The wide internal channel improves tire stability and air volume, favoring performance at lower pressures, especially in tubeless configurations. **Are lightweight 45mm carbon rims strong enough for racing and daily training?** Yes, each Bola rim undergoes impact and spoke hole tension testing (certified >300kg and >280kg), exceeding typical UCI durability standards for both race and training applications. **What's the benefit of choosing a wider 28mm inner width rim for my road bike?** The 28mm inner width allows a tire to maintain its shape and volume for better grip, reduced rolling resistance, and improved comfort—especially useful for wider modern tires and gravel setups. ### Advanced Carbon Construction for Lightweight Performance The Bola 700c 45mm carbon road rim is engineered with high-quality carbon fiber materials that deliver exceptional strength while maintaining a lightweight profile. This advanced construction reduces the overall weight of the wheel, allowing cyclists to experience improved acceleration and climbing efficiency. Ideal for competitive road riding, the rim’s carbon build also enhances durability and responsiveness. Its 34mm outer width combined with a 28mm internal rim width provides an optimized platform for modern wider tires, enhancing grip and comfort without sacrificing speed. ### Tubeless Ready Design for Enhanced Ride Quality This 700c 45mm carbon road rim is tubeless ready, designed to easily accommodate tubeless tires, which offer multiple benefits such as reduced rolling resistance and fewer punctures. The tubeless setup improves ride comfort by allowing lower tire pressures and increasing traction. The rim’s bead seat profile ensures a secure fit, making setup and maintenance effortless for cyclists at all levels. Tubeless compatibility is essential for riders seeking reliable performance on varied road surfaces and during long-distance rides. ### Optimized Dimensions for Aerodynamics and Stability With an outer width of 34mm and an inner width of 28mm, this carbon road rim strikes a perfect balance between aerodynamics and tire volume. The wider rim profile supports larger tires that improve stability, comfort, and cornering control, while maintaining a sleek aerodynamic shape that cuts through wind resistance efficiently. These dimensions are ideal for aggressive road cyclists and endurance riders who demand performance gains without compromising ride quality or handling precision. ## Details - **Price:** 310.0 USD - 330.0 USD - **Type:** Bicycle Rims & Wheel Components - **Tags:** 28mm inner width rim, 34mm wide, 45mm depth rim, 45mm road rim, 700c, 700c carbon rim, carbon bike rim, carbon road rim, custom wheel build, disc brake compatible rim, gravel bike rim, lightweight bike rim, lightweight road rim, modern road rims, rims, tubeless ready rim ## Variants | Variant | Price | Available | |---------|-------|-----------| | UD Matt / 20/20 / Standard | 310.00 USD | In stock | | UD Matt / 20/20 / Superlight | 320.00 USD | In stock | | UD Matt / 20/20 / Ultralight | 330.00 USD | In stock | | UD Matt / 24/24 / Standard | 310.00 USD | In stock | | UD Matt / 24/24 / Superlight | 320.00 USD | In stock | | UD Matt / 24/24 / Ultralight | 330.00 USD | In stock | | UD Matt / Customs / Standard | 310.00 USD | In stock | | UD Matt / Customs / Superlight | 320.00 USD | In stock | | UD Matt / Customs / Ultralight | 330.00 USD | In stock | | UD Glossy / 20/20 / Standard | 310.00 USD | In stock | | UD Glossy / 20/20 / Superlight | 320.00 USD | In stock | | UD Glossy / 20/20 / Ultralight | 330.00 USD | In stock | | UD Glossy / 24/24 / Standard | 310.00 USD | In stock | | UD Glossy / 24/24 / Superlight | 320.00 USD | In stock | | UD Glossy / 24/24 / Ultralight | 330.00 USD | In stock | | UD Glossy / Customs / Standard | 310.00 USD | In stock | | UD Glossy / Customs / Superlight | 320.00 USD | In stock | | UD Glossy / Customs / Ultralight | 330.00 USD | In stock | | Marble Matt / 20/20 / Standard | 310.00 USD | In stock | | Marble Matt / 20/20 / Superlight | 320.00 USD | In stock | | Marble Matt / 20/20 / Ultralight | 330.00 USD | In stock | | Marble Matt / 24/24 / Standard | 310.00 USD | In stock | | Marble Matt / 24/24 / Superlight | 320.00 USD | In stock | | Marble Matt / 24/24 / Ultralight | 330.00 USD | In stock | | Marble Matt / Customs / Standard | 310.00 USD | In stock | | Marble Matt / Customs / Superlight | 320.00 USD | In stock | | Marble Matt / Customs / Ultralight | 330.00 USD | In stock | | Marble Glossy / 20/20 / Standard | 310.00 USD | In stock | | Marble Glossy / 20/20 / Superlight | 310.00 USD | In stock | | Marble Glossy / 20/20 / Ultralight | 310.00 USD | In stock | | Marble Glossy / 24/24 / Standard | 310.00 USD | In stock | | Marble Glossy / 24/24 / Superlight | 310.00 USD | In stock | | Marble Glossy / 24/24 / Ultralight | 310.00 USD | In stock | | Marble Glossy / Customs / Standard | 310.00 USD | In stock | | Marble Glossy / Customs / Superlight | 310.00 USD | In stock | | Marble Glossy / Customs / Ultralight | 310.00 USD | In stock | ## Images - Bola 700c 45mm Carbon Road Rim – 34mm Outer, 28mm Inner, Tubeless Ready - Bola 700c 45mm Carbon Road Rim – 34mm Outer, 28mm Inner, Tubeless Ready - Bola 700c 45mm Carbon Road Rim – 34mm Outer, 28mm Inner, Tubeless Ready - Bola 700c 45mm Carbon Road Rim – 34mm Outer, 28mm Inner, Tubeless Ready - Bola 700c 45mm Carbon Road Rim – 34mm Outer, 28mm Inner, Tubeless Ready Carbon Fiber Sporting Goods - Bola 700c 45mm Carbon Road Rim – 34mm Outer, 28mm Inner, Tubeless Ready Carbon Fiber Sporting Goods ## Additional Information - **Product rating count:** 1 - **Related products settings:** ahead - **AI Summary:** The Bola 700c 45mm Carbon Road Rim is a high-modulus carbon fiber rim for road and gravel riders who want one wheel platform for paved, mixed-surface, endurance, and performance riding. Its 45 mm profile is intended to balance aerodynamic performance, weight, and modern tire versatility for custom wheel builds. - **Certifications & Testing Standards:** Forward Compressive Strength tested >300kg, Lateral Torsion tested >50kg, Spoke Hole Tension tested >280kg, Dynamic Equilibrium <3g imbalance, Flatness tolerance <0.15mm, Roundness tolerance <0.3mm, Meets ISO 4210-7:2019 Road safety standards - **Material:** High-modulus T700 carbon fiber with UV-cure resin finish - **Size / Length Guide:** Best for 700c road and gravel bikes fitted with 25–32mm tires. Ensure your frame and fork clear 34mm outer rim width. Compatible with thru-axle disc brake setups. - **Agentic Title:** Ultra-Light Bola 700c 45mm Carbon Rim - Tubeless Ready Excellence - **Agentic Category:** Sporting Goods > Outdoor Recreation > Cycling > Bicycle Parts > Bicycle Wheel Parts > Bicycle Wheel Rims - **Agentic Description:** High-modulus carbon 700c rim offering tubeless compatibility, customizable builds, and verified strength for long-lasting road and gravel performance. **Unique Selling Point:** An affordable, ultra-lightweight 700c carbon rim, optimized for tubeless setups and superior longevity. **Top Features:** - Ultra-lightweight construction enhances speed and handling - 34mm outer and 28mm inner widths for perfect tire fit - Tubeless-ready design reduces rolling resistance - Superior strength with forward compression >300kg - Disc-brake compatible for modern cycling setups - 3-year warranty backed by rigorous quality checks **Tech Specs:** - Size: 700c (ISO 622mm BSD) - Rim Height: 45mm - Outer Width: 34mm - Inner Width: 28mm - Weight: 370-445g by build grade - Material: High-modulus T700 carbon fiber - Valve Hole: 6.5mm (customizable) - Warranty: 3 years **Attributes:** - **Compatible bike type:** Road, Gravel - **Color:** Black - **Pattern:** Solid, Texture - **Disc Brake Ready:** Yes - **Warranty Period:** 3 years from date of purchase --- > Source: [Bola Carbon Wheelset ](https://bolacarbon.com/products/bola-700c-45mm-carbon-road-rim-34mm-wide-28mm-inner-width-tubeless-ready) > Updated: 2026-07-30