Set ruote BOLA 700c Aero in carbonio a 4 razze | Profilo 60mm, Tubeless/Tubolare
Set ruote BOLA 700c Aero in carbonio a 4 razze | Profilo 60mm, Tubeless/Tubolare
Impossibile caricare la disponibilità di ritiro
Set di ruote monoscocca in carbonio a quattro razze da 60 mm di profilo, disponibile in versione tubeless o tubolare, da 1550–1920 g a seconda della configurazione, per strada, pista e triathlon.
Piattaforma da gara a quattro razze
Il set di ruote a quattro razze Bola concentra il materiale per un'elevata rigidità torsionale e una sensazione di stabilità con vento laterale. Disponibile con opzioni di cerchio tubeless o tubolare in configurazioni da strada, pista e cronometro, bilancia stabilità aerodinamica ed efficienza nel peso.
Guida all'acquisto.
Configurazione - tubeless o tubolare: il tubolare riduce il peso ma richiede l'incollaggio; il tubeless è la scelta pratica e riparabile per l'uso quotidiano.
Configurazione - strada o pista: strada per cronometro e criterium, pista per il velodromo; scegli la versione adatta al tuo evento.
Mozzo - ratchet a 36 denti con ingaggio a dieci gradi: risposta rapida per sprint e scatti.
Larghezza pneumatico - canale stretto: pneumatici da 25-32 mm; si tratta di un cerchio classico a larghezza aerodinamica, non di una piattaforma gravel larga.
Della stessa famiglia - il set di ruote Bola a 6 razze si spinge oltre in termini di aerodinamica e certificazioni; le quattro razze favoriscono la compostezza con vento laterale.
Target di riferimento e note sull'utilizzo.
Corridori su strada, specialisti delle cronometro, triatleti e pistard.
Non adatto all'allenamento generico su strade dissestate.
La guida che ti attende.
Mettiti in posizione aerodinamica e lascia che quelle quattro ampie lame fendano il vento laterale: il sistema a cricchetto da 36T trasmette potenza fin dal primo grado di rotazione, mentre i cuscinetti ceramici ronzano mentre la strada scorre via. È equilibrio nella tempesta, velocità in pianura. Una garanzia di 2 anni e la spedizione gratuita ti permettono di scegliere la strada, la pista o il triathlon.
Specifications
- Material: High-modulus carbon fiber
- Rim depth: 60mm
- External width: 28mm
- Internal width: 19.6mm
- Size: 700c
- Hub: BL240
- Bearing: Ceramic
- Spoke: Foil Carbon
- Wheelset weight (+/-2% tolerance, excluding rim tape and valves): 1550-1920g
Trade-offs & Considerations
- Aero vs Weight: The four-spoke design offers strong aerodynamic efficiency but adds weight compared to shallow rims. For road tubular, the front wheel weighs 710g and rear 840g, totaling 1550g per set, which is competitive for aero wheels while still allowing for climbing.
- Stiffness vs Compliance: The high-modulus carbon layup provides high stiffness for immediate power transfer, but this can reduce comfort on rough roads. The 19.6mm inner width supports 25-32mm tires, enabling lower pressures for improved compliance without compromising aerodynamics.
- Tubeless vs Tubular: The wheelset offers both tubeless and tubular options. Tubular rims save weight (e.g., 710g front vs 870g for tubeless) but require glueing and are less practical for repairs. Tubeless tires offer puncture resilience and lower pressure capability, enhancing endurance rides.
- Crosswind vs Aero: The four-spoke profile is optimized to minimize crosswind sensitivity compared to traditional deep-section wheels, providing steadier handling at speed. This stability allows riders to maintain aerodynamics and confidence in gusty conditions without the penalty of a full disc wheel.
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
- Triathlon / TT: Excellent
- Road Racing: Good
- Gran Fondo / Endurance: Suitable
- Climbing / Hill Repeats: Suitable
- Not Recommended For: Not recommended
Compatibility
- Frame Compatibility: Frames with 12x100mm front and 12x142mm rear thru-axle
- Tire Type: Tubeless and tubular
- Tire Width Range: 25-32mm (based on 19.6mm inner width)
- Brake Standard: Rim brake (road) / Track (no brake); disc option available
- Axle Standard: 12x100mm (F) / 12x142mm (R)
- Drivetrain: Shimano/SRAM or Campagnolo, depending on hub
- Rotor Standard: N/A for rim brake; 6-bolt or centerlock for disc
How It Compares
| Model | Hub | Spoke | Bearing | Weight | Depth | Width | Price |
|---|---|---|---|---|---|---|---|
| 700C Carbon Four Spoke Wheel | BL240 | Foil Carbon | Ceramic | 1550-1920g | 60mm | 19.6mm | see store |
| Aero 60mm Carbon Wheelset | DT Swiss 240 | Sapim CX-Ray | Ceramic | 1500g | 60mm | 28mm | ~$2,500 |
| Aero 60mm Carbon Wheelset Pro | Zipp Cognition | Sapim CX-Ray | Ceramic | 1550g | 60mm | 27mm | ~$2,800 |
| Aero 60mm Carbon Wheelset Elite | Roval AF1 | DT Swiss Aerolite | Ceramic | 1490g | 60mm | 30mm | ~$2,200 |
FAQ
What riding scenarios are these wheels best suited for?
These 700C carbon four-spoke wheels are designed for road racing, time trials, triathlons, and velodrome use. They excel in events where aerodynamic efficiency and stiffness are critical, such as flat circuits and long-distance time trials. The wheelset offers a balance of weight and aero performance, making them suitable for both track and road competitions.
How do the weight and stiffness trade off between tubeless and tubular versions?
Tubular rims are lighter, with a front wheel weight of 710g and rear 840g for road, compared to tubeless versions at 870g and 1000g. This reduces rotating mass, improving acceleration and climbing. However, tubular tires require glueing and are less convenient for repairs. Tubeless setups offer lower pressure capability and better puncture resistance, but add weight due to sealant and rim tape.
What is the hub engagement and how does it affect acceleration?
The hub features a 36-tooth ratchet with a 10-degree engagement angle, meaning the drivetrain responds almost instantly when power is applied. This provides positive engagement and quick drive response, which is crucial for sprinting and technical sections. The high tooth count ensures minimal pedal lag, enhancing acceleration out of corners.
What tire pressures are recommended for tubeless setups?
For tubeless configurations, recommended pressures depend on rider weight and tire width. With a 19.6mm inner rim width, typical pressures range from 80-100 psi (5.5-6.9 bar) for 25mm tires, and lower for wider tires. Using lower pressures improves comfort and traction while reducing rolling resistance on certain surfaces.
How do these wheels handle crosswinds compared to traditional deep rims?
The four-spoke design is optimized for aerodynamic stability, reducing the crosswind sensitivity often associated with deep-section rims. This provides steadier handling at high speeds, allowing riders to maintain confidence in gusty conditions without the need for a shallow rim compromise.
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
