Cerchio Bola 700C 120mm Deep Aero in carbonio tubeless | 28mm di larghezza TT Triathlon
Cerchio Bola 700C 120mm Deep Aero in carbonio tubeless | 28mm di larghezza TT Triathlon
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Il cerchio in carbonio aero Bola da 120mm - un cerchio per TT/triathlon con profilo UV da 120mm, 28mm esterno / 21,5mm interno, ~655g, tubeless hooked, per assemblaggi di ruote posteriori aero.
Una lama in carbonio da 120mm in bilico tra il ragionevole e l'estremo: abbastanza profondo da dominare un percorso pianeggiante, abbastanza leggero da rimanere, per gli standard dei profili alti, quasi agile.
Guida all'acquisto.
Caso d'uso: un cerchio posteriore ad alto profilo per TT e triathlon su percorsi da pianeggianti a vallonati, più gestibile dell'opzione da 180mm.
Giudizio sul percorso: preferiscilo a cerchi meno profondi per mantenere la velocità in pianura; predilige comunque percorsi protetti dal vento rispetto alle salite.
Scelta dello pneumatico: utilizza pneumatici da gara ad alta pressione da 25-28mm sul canale interno stretto.
Serie di pari profondità: il cerchio aero da 180mm ($450) è più profondo per la velocità in pianura; il cerchio ondulato da 90/95mm ($350) è più ondulato e stabile.
Profondità adiacente: il cerchio tubeless hooked da 88mm ($350) è una classica scelta a razze ad alto profilo inferiore.
Solo per ruota posteriore; rispetta il limite di peso del sistema.
Pubblico di riferimento e note sull'utilizzo.
Assemblaggi di ruote posteriori per TT/triathlon.
Ruota posteriore su percorsi da pianeggianti a vallonati; tubeless/clincher da 25-28mm, fino a 125 PSI.
Limite ciclista 125kg per famiglia di prodotti.
Non indicato per gravel, salite, discese tecniche o condizioni di vento forte.
L'esperienza di guida che ti attende.
Assemblato come ruota posteriore, mantiene una linea aerodinamica forte e costante; il canale stretto permette allo pneumatico da gara di scorrere sottile e veloce, mentre i chilometri scorrono alle tue spalle.
Tu sei la forma della velocità.
Spedizione gratuita e 3 anni di garanzia sul cerchio completano l'assemblaggio.
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- Materiale: carbon fiber
- Altezza: 120mm
- Larghezza esterna: 28mm
- Larghezza interna: 21.5mm
- Misura: 700c
- Profile: UV-shaped
- Peso Tier: 655g
- PSI massimo: 125
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- Aero vs Crosswind: The 120mm deep section provides excellent aerodynamic efficiency for straight-line speed, but the deep profile can be challenging in crosswinds. Riders may need to manage handling in gusty conditions, especially at speeds above 30 km/h.
- Aero vs Climbing: At 655g per rim, this carbon rim is lightweight for its Altezza, but when built into a wheelset it still adds significant inertia compared to shallower rims. On steep climbs, the aero benefit is minimal and the Peso penalty becomes noticeable versus a sub-40mm rim.
- Stiffness vs Compliance: The high-modulus carbon layup offers high lateral stiffness for power transfer, but this can translate to a harsh ride on rough roads. The 21.5mm internal width and Tubeless setup allow for lower tire pressures to help compliance, but the rim itself is not designed for comfort.
- Versatility vs Specialization: This rim is specifically designed for time trial and triathlon use, prioritizing aerodynamics over all-round performance. Its Altezza and narrow tire width range (25-28mm) make it less suitable for general road riding, where a shallower rim would be more balanced.
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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: <0.25mm (internal QC)
- Roundness: <0.3mm (internal QC)
- Max Raggio 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 Peso: N/D
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- Sprinting / Criterium: Good for sprinting on flat circuits, but less agile in corners.
- Triathlon / TT: Excellent for time trials and triathlons on flat courses.
- Road Racing: Good for flat and rolling race stages.
- Gran Fondo / Endurance: Not recommended due to Peso and wind sensitivity.
- Climbing / Hill Repeats: Not recommended.
- Not Recommended For: Gravel, steep climbs, technical descents, and extremely windy conditions.
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- Frame Compatibility: 700c road bikes with disc Freno mounts
- Tire Type: Tubeless-ready clincher (also compatible with standard clincher tires)
- Tire Width Range: 25mm - 28mm
- Freno Standard: Disc Freno only
- Drivetrain: All standard drivetrains (Shimano, SRAM, Campagnolo) depending on Mozzo
- Rotore Standard: 6-bolt or CenterLock (depends on Mozzo)
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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 120mm | N/A | N/A | N/A | 655g | 120mm | 28mm | vedi negozio |
| ENVE SES 8.9 | N/A | N/A | N/A | 680g | 89mm | 28mm | ~$1800 |
| Zipp 808 Firecrest | N/A | N/A | N/A | 730g | 82mm | 28mm | ~$1100 |
| Roval CLX 80 | N/A | N/A | N/A | 720g | 80mm | 28mm | ~$1000 |
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What tubeless setup do I need for this rim?
This rim is tubeless-ready with a hooked bead, so you can run tubeless tires without a tube. Use tubeless-specific tires, sealant, and a valve. For best performance, use a 25-28mm tubeless tire. The rim supports up to 125 psi, but typical road tubeless setups use lower pressure, around 80-100 psi.
What tire sizes are compatible with this rim?
The rim is designed for 700x25c and 700x28c tires. With a 21.5mm internal width, these tire sizes provide an optimized profile for aerodynamics. Using 25mm or 28mm tires is recommended for best performance and comfort.
How much weight does this rim save compared to a standard alloy rim?
This carbon rim weighs approximately 655g, which is about 300-400g lighter than a typical alloy rim of similar depth. Lighter rims reduce rotational mass, improving acceleration and climbing efficiency.
Can I build this rim with custom spokes and hubs?
Yes, this rim can be laced to any compatible hub using standard spokes. The rim has a spoke hole count that can be ordered with various drillings (e.g., 20/24/28). You can choose hubs, spokes, and nipples to suit your weight and riding style. A professional wheel build is recommended.
How do I maintain and inspect the carbon rim?
Regularly inspect the rim for cracks, delamination, or impact damage. Check spoke tension and trueness. Clean with mild soap and water, avoid harsh chemicals. For brake tracks (if applicable), use specific carbon brake pads. If you notice any damage, replace the rim immediately.
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