Llanta de carbono para gravel 700c 40mm — Con gancho 24mm / Sin gancho 25mm
Llanta de carbono para gravel 700c 40mm — Con gancho 24mm / Sin gancho 25mm
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La llanta de gravel de carbono Bola 700c: un aro de 40 mm de perfil y 30 mm de ancho (325-395 g) con gancho de 24 mm o sin gancho de 25 mm de ancho interno, lista para tubelizar.
Una flecha de gravel más profunda: una sección en V de 40 mm añade estabilidad aerodinámica en sectores de gravel rápido, mientras que la plataforma exterior de 30 mm estabiliza los neumáticos anchos. Elija la opción con gancho para una mayor compatibilidad o sin gancho para sistemas tubeless modernos.
Guía de compra.
Nivel de peso - Extraligero ~325 g: el montaje de competición ultraligero para días de gravel rápido y ciclocrós.
Nivel de peso - Ultraligero ~345 g: el punto medio para competición y entrenamiento.
Nivel de peso - Superligero ~365 g: el montaje de gravel polivalente.
Nivel de peso - Normal ~395 g: el montaje de durabilidad de grado ligero para kilómetros más exigentes.
Ancho interno - Con gancho 24 mm: amplia compatibilidad con cámaras/neumáticos; elíjalo si a veces usa cámaras o neumáticos antiguos.
Ancho interno - Sin gancho 25 mm: estándar ETRTO tubeless moderno para presiones más bajas; elíjalo para obtener el sellado más limpio y la menor presión de rodadura.
De la misma familia: esta es la llanta de mayor perfil en la línea de gravel, por encima de las opciones de 30 mm y 35 mm (310 $) cuando la aerodinámica en sectores rápidos es importante.
Límite de peso del ciclista: 100 kg.
Público objetivo y notas de uso.
Competición de gravel, bikepacking y terrenos mixtos; no apta para cubiertas de carretera de alta presión.
Límite de peso del ciclista: 100 kg; solo para discos.
La experiencia que le espera.
Apunte hacia un sector de gravel rápido y sienta cómo la sección en V más profunda mantiene la línea: lo suficientemente aerodinámica para cortar el viento, lo suficientemente ancha para estabilizar un neumático grueso en terreno irregular. Móntela en tubeless y flotará sobre los surcos, manteniéndose estable donde las ruedas de perfil bajo se verían afectadas por el viento. Elija entre con gancho o sin gancho y su laminado; la garantía de 3 años de la llanta le acompaña.
Specifications
- Material: carbon
- Rim depth: 40mm
- External width: 30mm
- Internal width: 24/25mm
- Size: 700c
- Profile: V-shaped
- Weight Tier: Normal (395g), Superlight (365g), Ultralight (345g), Extreme Light (325g)
- Max Tire Pressure: 110 (hooked) / 85 (hookless)
Trade-offs & Considerations
- Aero vs Climbing: 40mm depth offers moderate aero efficiency without significant weight penalty; select the 325g Extreme Light tier for climbing focus, or the 395g Normal tier for added durability.
- Stiffness vs Compliance: 30mm outer width provides a stiff platform for power transfer, but allows lower tire pressures for compliance; hooked (24mm inner) and hookless (25mm inner) options affect tire shape and ride feel.
- Tire Volume vs Speed: Supports 38c–50c tires for increased volume and traction on gravel; the 40mm profile reduces drag at higher speeds compared to shallower rims, balancing speed and grip.
- Weight vs Durability: Weight tiers span 325g to 395g; lighter tiers sacrifice durability margin, especially for heavier riders or harsh terrain, while heavier tiers offer more resilience and strength.
Performance Test Data
- Fatigue Test: 750,000 cycles @640N (ISO 4210-7 Annex A, informative only)
- Impact Resistance: >40J (ISO 4210-7 reference)
- Flatness: <0.25mm (internal QC)
- Roundness: <0.3mm (internal QC)
- Max Spoke Tension: >300kg (internal QC)
- Ultimate Strength: >100kg (internal QC)
- Dynamic Equilibrium: <3g (internal QC)
- Radial Stiffness: 90–110 N/mm (internal lab)
- Lateral Stiffness: ≥8N/mm
- Max System Weight: N/A
Recommended Use Cases
- Gravel Racing: Excellent. Optimized for mixed terrain with 38c-50c tire support and aero profile.
- Bikepacking: Good. Wide platform and weight options suit loaded touring, but lighter tiers may be less durable.
- Gran Fondo / Endurance: Suitable. Comfortable with wide tires, but aero benefit limited on road surfaces.
- Road Racing: Not recommended. Designed for gravel, not high-pressure road tires; max pressure capped.
- Training / Daily Riding: Good. Durable options available, but better suited for gravel surfaces.
- Not Recommended For: High-pressure road clincher applications; extreme-light tier for heavy riders.
Compatibility
- Frame Compatibility: Disc brake frames and forks; compatible with thru-axle or quick release depending on hub (rim only)
- Tire Type: Tubeless (hooked or hookless); also compatible with tubed setups using hooked version
- Tire Width Range: 27c - 42c
- Brake Standard: Disc only (no rim brake surface)
- Drivetrain: Compatible with all drivetrains (rim is drivetrain-agnostic)
- Rotor Standard: Compatible with any disc brake rotor (mounting depends on hub)
How It Compares
| Model | Hub | Spoke | Bearing | Weight | Depth | Width | Price |
|---|---|---|---|---|---|---|---|
| Bola 700c Carbon Gravel Rim | N/A | N/A | N/A | 325-395g | 40mm | 24/25mm | see store |
| 40 Carbon Gravel Rim | N/A | N/A | N/A | ~350g | 40mm | 30mm | ~$750 |
| 40|30 Gravel Rim | N/A | N/A | N/A | ~360g | 40mm | 30mm | ~$800 |
| 40 Gravel Rim | N/A | N/A | N/A | ~370g | 40mm | 30mm | ~$650 |
FAQ
How do I set up these rims tubeless?
Apply rim tape covering the spoke bed, install a compatible tubeless valve, and mount tubeless tires. Use a compressor or high-volume pump to seat the bead. The spoke bed is not sealed from the factory, so proper taping is essential. Hooked versions allow up to 125 psi; hookless versions follow ETRTO guidance (e.g., max 73 psi).
Which tire sizes are compatible?
The rims are designed for 38c to 50c gravel tires. The outer width is 30mm, with inner widths of 24mm (hooked) or 25mm (hookless). Mounted tire width is typically 2-3mm wider than labeled. Hookless requires ETRTO-compliant tires and lower pressure.
What weight savings can I expect between the tiers?
The Normal tier weighs 395±15g, Superlight 365±10g, Ultralight 345±10g, and Extreme Light 325±10g. Choosing Extreme Light saves 70g per rim compared to Normal, but reduces durability margin, especially for heavier riders or aggressive terrain.
Can I customize the rim for my build?
Yes, ERD, valve hole, spoke hole, assembly hole, nipple angles, and drilling patterns are customizable. You can specify these to match your hub and spoke choices. Contact us for custom orders.
What maintenance and inspection is recommended?
Regularly check spoke tension and true the wheel. Impact damage from rocks can cause flatness or roundness deviations; keep tolerances within 0.15mm flatness and 0.3mm roundness. The rims are disc-brake specific, so inspect for brake heat damage. Spoke hole tension should not exceed 280kg.
Warranty & Shipping
- Warranty Period: 3 years for rims / 2 years for wheelsets
- Warranty Coverage: Manufacturing defects on carbon structure
- Crash Replacement: 30% discount within warranty period
- Processing Time: 1–3 business days; 7–15 business days for custom or out-of-stock items
- Shipping Method: FedEx / UPS / DPD Economy (free, duties & VAT included) · Expedited option at checkout (duties & VAT payable on delivery)
- Estimated Delivery:Economy 7–20 business days · Expedited 3–7 business days, excluding customs clearance
- Packaging: Double-wall carton with foam protection
