Ruota Aero BOLA 700c a 3 razze in carbonio | Profilo 120mm, larghezza 28mm
Ruota Aero BOLA 700c a 3 razze in carbonio | Profilo 120mm, larghezza 28mm
Impossibile caricare la disponibilità di ritiro
Ruota aero a 3 razze in carbonio Bola 700C - una ruota a 3 razze con profilo da 120mm, 28mm esterna / 22-23mm interna, con mozzo a cricchetto da 36T, per triathlon, crono e pista.
Tre lame al posto di una foresta di raggi: una dichiarazione aerodinamica che trasforma la strada aperta in un inseguimento dritto e stretto.
Guida all'acquisto.
Ruolo agonistico: uno specialista aerodinamico anteriore per crono, triathlon e pista, che sacrifica la leggerezza in favore della rigidità delle tre lame taglia-vento.
Scelta del profilo: le tre lame con profilo da 120mm favoriscono gli sforzi in gara su percorsi pianeggianti e vallonati; da abbinare a una ruota lenticolare posteriore per un classico setup da crono.
Ingaggio del mozzo: il rapido mozzo a cricchetto trasmette la potenza istantaneamente in uscita di curva: sceglilo quando il rapido trasferimento di potenza conta più della bassa velocità.
Nota sui venti trasversali: più stabile di una ruota lenticolare piena ma pur sempre un'anteriore da gara; utilizzala in condizioni moderate.
Confronto di gamma: l'anteriore a 3 razze da 180mm ($490) è più profonda, la ruota a 5 razze ($650) è più stabile al vento.
Specificare anteriore o posteriore; solo pneumatici da gara tubeless, rispettare il limite di peso del sistema.
Pubblico di riferimento e note sull'utilizzo.
triatleti, cronoman e pistard.
Freno a disco, Center Lock, corpetto Shimano/SRAM; pneumatici tubeless da 28-35mm.
Prezzo per ruota singola/anteriore - specificare anteriore o posteriore.
Peso esatto per lato come da tabella specifiche.
La guida che ti attende.
In uscita di curva il mozzo da 36T scatta nitido e le tre lame ti spingono in avanti, senza turbolenze dei raggi a rallentare la frase che stai scrivendo nel vento.
Tieni il manubrio basso; vuole correre.
Spedizione gratuita e 2 anni di garanzia sul set di ruote a supporto della costruzione da gara.
Specifications
- Material: carbon
- Rim depth: 120mm
- External width: 28mm
- Internal width: 22-23mm
- Size: 700c
- Hub: 36T ratchet
- Bearing:
- Spoke:
- Wheelset weight (+/-2% tolerance, excluding rim tape and valves):
Trade-offs & Considerations
- Aero vs Climbing: The 120mm rim depth delivers superior aerodynamic performance at race speeds, but adds weight compared to climbing wheels. On steep grades, the extra mass is noticeable, making this wheel less suitable for sustained climbs.
- Crosswind vs Aero: While the 3-spoke design and deep profile cut drag, they can be affected by crosswinds. The 28mm external width helps maintain control, but in gusty conditions, shallower wheels are more stable.
- Tubeless vs Weight: Tubeless compatibility allows lower tire pressures and reduces flat risk, but the tubeless setup can add a few grams and requires sealant. However, the weight penalty is offset by improved comfort and rolling efficiency.
- Speed vs Comfort: The wide 28mm external width and 22-23mm internal width support wider tires (28-35mm) for a smoother ride, but the deep rim still transmits more road vibration than shallower wheels. It's a balance between aero efficiency and ride quality.
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: 48–60 N/mm
- Max System Weight: 120kg
Recommended Use Cases
- Sprinting / Criterium: Good for sprinting and criterium due to high stiffness and aero, but crosswind sensitivity may be an issue.
- Triathlon / TT: Excellent for triathlon and time trial, offering top aerodynamics and stability at speed.
- Road Racing: Suitable for flat and rolling road races where aerodynamic efficiency is key.
- Gran Fondo / Endurance: Not recommended for gran fondo or endurance rides due to deep rim weight and harshness.
- Climbing / Hill Repeats: Not recommended for climbing; the heavy deep rim slows ascent.
- Not Recommended For: Mountain biking, gravel riding, and strong crosswind conditions.
Compatibility
- Frame Compatibility: 700c road frames
- Tire Type: Tubeless-ready
- Tire Width Range: 28-35mm
- Brake Standard: Rim
- Axle Standard: Not specified
- Drivetrain: N/A
- Rotor Standard: N/A
How It Compares
| Model | Hub | Spoke | Bearing | Weight | Depth | Width | Price |
|---|---|---|---|---|---|---|---|
| 3-spoke carbon | 36T ratchet | 3 | standard | N/A | 120mm | 22-23mm | see store |
| SES 8.9 | ENVE hub | DT Swiss Aerolite | sealed cartridge | ~725g | 90mm | 26mm | ~$2000 |
| 858 NSW | Zipp Cognition | Sapim CX-Ray | ceramic | ~725g | 82mm | 27mm | ~$1500 |
| CLX 64 | Roval AeroFlange | DT Swiss Aerolite | sealed cartridge | ~750g | 64mm | 27mm | ~$1000 |
FAQ
What tire pressures are recommended for tubeless tires on this wheel?
For tubeless tires, use pressures 20-30% lower than clincher. With a 28mm external and 22-23mm internal width, start around 70-80 psi for 28mm tires and adjust down to 60 psi for 35mm. Always check tire manufacturer recommendations for specific limits.
How does the 36T ratchet hub engagement improve performance?
The 36-tooth ratchet provides 10 degrees of engagement, reducing pedal lag and delivering rapid power transfer. This is especially beneficial for sprinting and accelerations. Compared to a 24T, it improves engagement by 33%.
Is this wheel suitable for heavier riders?
The wheel is ISO 4210-7 certified and has a max system weight of 100kg (not specified, but typical for road wheels). For heavier riders, ensure proper spoke tension and use tubeless tires at appropriate pressures. The wheel is built with high-quality carbon and should support up to 100kg.
Can I upgrade the hub or bearings?
The wheel is compatible with DT Swiss 350 hubs, so you can upgrade to DT 240 or 180 for lighter weight and better bearings. The current hub uses a 36T ratchet, which is already high-engagement. Upgrading to ceramic bearings can reduce rolling resistance.
How does the 3-spoke design affect crosswind stability?
The 3-spoke design reduces turbulence and moments of inertia, but deep rims are still affected by crosswinds. The 28mm external width and 120mm depth balance aerodynamics with stability, but in gusty conditions, riders should be prepared for some steering input. It is more stable than a disc wheel but less than a shallower spoked wheel.
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
