Cerchio strada Bola 700C 30mm in carbonio tubeless | 28mm di larghezza
Cerchio strada Bola 700C 30mm in carbonio tubeless | 28mm di larghezza
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Cerchio da corsa in carbonio ondulato Bola 700C da 40/45 mm: un cerchio aero ondulato da 40/45 mm con larghezza esterna di 28 mm e interna di 22 mm, disponibile in quattro livelli di peso, ideale per salite e configurazioni aero a tutto tondo.
Un profilo ondulato meno profondo che unisce gambe da scalatore e intelligenza aerodinamica: la prova che la velocità non deve necessariamente comportare il peso di un cerchio ad alto profilo.
Guida all'acquisto.
Livello di peso - ~350g (Ultraleggero): la scelta ideale per gli scalatori puri, per ripetute in salita e gare collinari.
Livello di peso - ~370g (Ultraleggero): la scelta rapida per gare a tutto tondo.
Livello di peso - ~395g (Leggero): bilanciato per allenamenti regolari e gare.
Livello di peso - ~430g (Leggero): la soluzione resistente per ciclisti più pesanti e strade sconnesse.
Scelta del profilo: scegli 40 mm per salite e venti trasversali, o 45 mm per una maggiore aerodinamicità in pianura.
Serie con lo stesso profilo: il cerchio UV da 40 mm e 23 mm ($310) e il cerchio largo da 45 mm e 34/28 mm ($310) coprono stili di guida affini.
Profilo adiacente: il cerchio ondulato da 55/60 mm ($310) aggiunge vantaggi aerodinamici in pianura; questo cerchio da 40/45 mm rimane leggero e agile.
Pubblico di riferimento e note sull'utilizzo.
scalatori, corridori a tutto tondo e assemblatori di ruote.
Telai da corsa con freni a disco; foratura da 24 fori. Peso massimo del sistema 110 kg.
Non indicato per un uso intenso fuori strada.
L'esperienza di guida che ti aspetta.
Montalo leggero e il cerchio accelererà come un velocista dai blocchi di partenza, arrampicandosi con te per poi scivolare agilmente nei tratti aerodinamici.
La forma ondulata garantisce stabilità anche in presenza di raffiche di vento.
Spedizione gratuita e 3 anni di garanzia sul cerchio completano un pacchetto leggero e versatile.
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- Materiale: Toray carbon
- Altezza: 40/45mm
- Larghezza esterna: 28mm
- Larghezza interna: 22mm
- Misura: 700c
- Profile: Wave U-shaped
- Peso Tier: 350g, 370g, 395g, 430g
- PSI massimo: 110psi
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- Aero vs Climbing: The 40mm Altezza offers a balance between aerodynamics and Peso, while the 45mm Altezza provides more aero benefit but adds Peso. Choose 40mm for climbing, 45mm for flat/aero courses.
- Peso vs Durability: Peso tiers range from 350g to 430g. Lighter rims are more responsive but may be less robust for heavy riders or rough roads. Heavier options (430g) offer added durability.
- Tire Volume vs Speed: The 28mm external width supports wider tires (28-32mm) for comfort and puncture resistance, but wider tires may increase rolling resistance. The 22mm internal width allows for Tubeless setup and lower pressures.
- Crosswind vs Aero: Deeper rims (45mm) provide better aerodynamics but are more susceptible to crosswinds. The 40mm Altezza is a good compromise for windy conditions.
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- Fatigue Test: 750,000 cycles @640N (ISO 4210-7 Annex A, informative only)
- Impact Resistance: >40J (ISO 4210-7 reference)
- Flatness: <0.15mm (internal QC)
- Roundness: <0.3mm (internal QC)
- Max Raggio Tension: >280kg (internal QC)
- Ultimate Strength: >300kg (internal QC)
- Dynamic Equilibrium: <3g (internal QC)
- Radial Stiffness: 90–110 N/mm (internal lab)
- Lateral Stiffness: ≥8N/mm
- Max System Peso: 110
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- Climbing / Hill Repeats: Excellent
- Gran Fondo / Endurance: Excellent
- Road Racing: Excellent
- Sprinting / Criterium: Good
- Training / Daily Riding: Good
- Not Recommended For: Not recommended
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- Frame Compatibility: 700c road frames with disc Freno mounts
- Tire Type: Clincher and Tubeless
- Tire Width Range: 26-38mm
- Freno Standard: Disc
- Drivetrain: N/D
- Rotore Standard: N/D
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| Translation missing: it.product.metafields.model | Translation missing: it.product.metafields.hub | Translation missing: it.product.metafields.spoke | Translation missing: it.product.metafields.bearing | Translation missing: it.product.metafields.weight | Translation missing: it.product.metafields.depth | Translation missing: it.product.metafields.width | Translation missing: it.product.metafields.price |
|---|---|---|---|---|---|---|---|
| Bola | Disc | 24 | Not specified | 350-430g | 40&45mm | 28mm | vedi negozio |
| Hunt 40 Carbon Disc Rim | Not specified | 24 | Not specified | 450g | 40mm | 28mm | ~$250 |
| Reserve 40mm Carbon Rim | Not specified | 24 | Not specified | 445g | 40mm | 28mm | ~$700 |
| Parcours 40mm Carbon Rim | Not specified | 24 | Not specified | 440g | 40mm | 28mm | ~$350 |
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What is the recommended tire width for this rim?
The recommended tire width is 28-32mm. The 28mm external width and 22mm internal width support wider tires for comfort and puncture protection. Using wider tires may require adjusting tire pressure to 100-125 psi depending on tire choice.
How do I set up tubeless tires on this rim?
The rim is tubeless compatible with a 22mm internal width. You will need tubeless valves, sealant, and compatible tires. Ensure the rim tape is applied properly. The valve hole is 6.5mm standard, and custom options are available.
What are the weight savings compared to standard rims?
This carbon rim weighs between 350g and 430g depending on the tier. Compared to aluminum rims, which typically weigh 450-500g, you can save 50-150g per rim. The lighter options (350g) are ideal for climbing, while heavier ones offer more durability.
Can I build a custom wheelset with this rim?
Yes, the rim is designed for custom builds with 24 spoke holes. It is compatible with disc brake hubs. You can choose from four weight tiers to match your riding style. The rim is rated for riders up to 120kg and has a compressive strength of over 300kg.
What maintenance and inspection is required for this carbon rim?
Regularly inspect the rim for impact damage, delamination, and spoke tension. Check for any cracks or chips. The rim is tested for flatness <0.25mm and roundness <0.3mm. If you notice any issues, consult a professional. Avoid overheating the rim with excessive braking, though this is disc-specific so brake heat is less of a concern.
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