Bola 700c 45mm Asymmetric Carbon Tubeless Rim, 28mm Wide | Disc & Rim Brake
Bola 700c 45mm Asymmetric Carbon Tubeless Rim, 28mm Wide | Disc & Rim Brake
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The Bola 700c 45mm asymmetric carbon tubeless rim provides high-strength, aerodynamically optimized wheel performance for road and gravel cyclists seeking a technical edge. Built with premium T700/T800 unidirectional carbon fiber, this rim supports disc and rim brake setups with multiple inner width and bead options, offering weight-optimized choices for competitive wheel builds and endurance riding needs.
Key Features & Specs
- Material: T700/T800 unidirectional carbon fiber
- Size: 700c (ISO 622)
- Depth: 45mm asymmetric U-shape
- Width: 28mm outer, 21mm or 23mm inner
- Compatibility: Hookless or hooked bead, tubeless-ready, supports disc and rim brake hubs
- Weight Options: 375g (Extreme-Light), 380g (Ultra-Light), 405g (Super-Light), 460g (Standard)
- Spoke Hole: 4.5mm, for standard road hub fitment
- Max Rider Weight: 100kg
- Recommended Tire Size: 25β32mm tubeless (ETRTO/ISO 622)
- Certifications: ISO 622, ETRTO-compatible bead, Dynamic balance tested (<3g), Flatness (<0.15mm), Roundness (<0.3mm)
- Warranty: 3 years, against manufacturing defects
How it Compares
| Feature | This Product (Bola 45mm Rim) | Competitor Performance Model* |
|---|---|---|
| Material | T700/T800 UD carbon fiber | Toray T700/800, similar grade |
| Outer Width | 28mm | 25β28mm |
| Rim Depth | 45mm | 45mmβ54mm |
| Weight Range | 375gβ460g (by model) | 420gβ470g (mid-tier), 370gβ420g (premium) |
| Brake Compatibility | Disc & Rim | Disc (some only), rim (some only) |
| Bead Type | Hooked/Hookless | Hooked/hookless (not always both) |
| Certification | ISO 622, ETRTO | ISO, ETRTO (standard) |
| Warranty | 3 years | 2β3 years (varies) |
| Price | Competitive, factory-direct | High (premium); variable (OEM/DT) |
*Performance model summarization based on DT Swiss, CADEX, and leading Chinese OEM competitors.
Recommended Use Cases
- Upgrade for lightweight and aerodynamic road bike wheelsets
- Endurance and long-distance riding with stability and comfort
- Custom wheel builds for amateur racing, triathlons, and gravel cycling
- OEM and aftermarket wheel projects for disc or rim brake bikes
- B2B: Wheel suppliers and workshops seeking ISO-certified, cost-effective carbon rims
Frequently Asked Questions
What advantages does an asymmetric carbon rim offer for road and gravel cycling?
The asymmetric profile helps equalize left/right spoke tensions, resulting in improved lateral stiffness and wheel durability, especially important for disc brake and high-load endurance applications.
Is this rim suitable for both tubeless and tube-type tires?
Yes, Bola 700c 45mm asymmetric carbon rims are tubeless-ready according to ETRTO/ISO 622 standards, but also compatible with traditional inner tube setups if preferred.
What hub and spoke types fit this rim?
Designed for 4.5mm spoke holes, compatible with standard J-bend and straight-pull spokes, fitting both disc brake and rim brake hubs (Center Lock/6-bolt or QR/bolt-on; specify at order).
Is the warranty truly global and what does it cover?
Bola provides a 3-year warranty from date of purchase covering manufacturing defects in materials or workmanship. Rider misuse, accidents, and non-standard assembly are excluded per policy. Global after-sales support is available.
How does this rim compare to premium-brand carbon rims?
While major brands offer similar Toray carbon material and rim specs, Bola eliminates the high brand premium by supplying directly from the factory, maintaining strict quality control and warranty standards. This offers a balance of price and reliable performance for both amateur racers and intensive riders.
Bola 700c 45mm asymmetric carbon rim delivers high-strength, aerodynamic performance for road and gravel cyclists. Compatible with disc and rim brakes, its tubeless-ready U-shape supports efficient, lightweight builds. Each rim uses T700/T800 unidirectional carbon fiber, meeting ISO and ETRTO standards for reliability, precision, and versatility in endurance or racing scenarios.
