700C 80mm Carbon Rim Aero TT Triathlon| Bola
700C 80mm Carbon Rim Aero TT Triathlon| Bola
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An 80mm UV (toroidal) carbon rim with 34/23mm widths, tubeless/clincher/tubular compatible, 580–610g, for triathlon and time trial.
Deep-Section Speed Weapon
The BOLA 80mm UV (toroidal) rim is engineered for flat triathlon and time trial courses where every watt and gust matters. Its 34mm outer width and 23mm inner width pair with 25–28mm tires to smooth airflow and improve crosswind behaviour.
Buying Guide.
Tire system - one rim, three setups: tubeless, clincher or tubular all work; pick tubular for lightest race day, tubeless for practicality.
Weight - heavy aero: this section carries rotating mass for flat tri; it is not a climbing rim.
Tire width - narrow bed: 25-28mm rubber is the aero choice; wider adds comfort and drag.
Adjacent depth - this is the deep end of the Bola aero range; step down to the shallower wave rims for anything but flat courses.
Target Audience & Usage Notes.
Triathletes, Ironman racers, and road time trialists on flat/rolling courses.
Not for climbing or gran fondo on rough terrain.
The Ride That Awaits.
Settle into your aero bars on a flat course and feel that towering toroidal section shoulder the wind aside - the road narrows to a single white line, the clock your only companion. It is pure, uncompromising speed for the rider who dares. A 2-year warranty and free shipping let you commit to the distance.
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- Material: Toray carbon
- Rim depth: 80mm
- External width: 34mm
- Internal width: 23mm
- Size: 700c
- Profile: UV (Toroidal)
- Weight Tier: 580-610g
- Max Tire Pressure: 125
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- Aero vs Climbing: The 80mm depth prioritizes aerodynamics over climbing efficiency. At 580-610g per rim, it's not a lightweight climbing option, but the toroidal profile reduces drag for sustained speed on flat and rolling courses.
- Stiffness vs Compliance: Toray carbon construction delivers high stiffness for power transfer, but the deep profile and wide 34mm outer width may reduce vertical compliance. Riders looking for comfort on rough roads might find it harsh, but the 23mm internal width allows for 25-28mm tyres at moderate pressures to add some compliance.
- Tire Volume vs Speed: The 34mm outer width and 23mm internal width are optimized for modern 25-28mm tyres, balancing low rolling resistance with aerodynamic efficiency. This setup improves airflow and reduces crosswind sensitivity compared to narrower rims.
- Crosswind vs Aero: While the deep 80mm section is highly aerodynamic, it can be affected by crosswinds. The wide toroidal shape helps manage gusty conditions, but riders may still feel a force in strong winds. The trade-off is between raw aero performance and stability.
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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 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
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- Sprinting / Criterium: Good
- Triathlon / TT: Excellent
- Road Racing: Suitable
- Gran Fondo / Endurance: Not recommended
- Climbing / Hill Repeats: Not recommended
- Not Recommended For: Not recommended
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- Frame Compatibility: 700c road and triathlon frames with 700c wheel fitment.
- Tire Type: Tubeless, clincher, tubular
- Tire Width Range: 25-28mm recommended
- Brake Standard:
- Drivetrain: N/A
- Rotor Standard: N/A
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| Translation missing: en.product.metafields.model | Translation missing: en.product.metafields.hub | Translation missing: en.product.metafields.spoke | Translation missing: en.product.metafields.bearing | Translation missing: en.product.metafields.weight | Translation missing: en.product.metafields.depth | Translation missing: en.product.metafields.width | Translation missing: en.product.metafields.price |
|---|---|---|---|---|---|---|---|
| 80mm Deep UV | N/A | N/A | N/A | 595g | 80mm | 23mm | see store |
| 858 | High-end | Bladed | Ceramic | 700g | 82mm | 30mm | ~$2000 |
| 8.9 | High-end | Bladed | Ceramic | 800g | 89mm | 32mm | ~$2500 |
| 80 | High-end | Bladed | Ceramic | 750g | 80mm | 30mm | ~$1800 |
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Can I set up this rim tubeless?
Yes, the Bola 700c 80mm rim is tubeless compatible. The 23mm internal width and 34mm outer width are designed to work with 25-28mm tubeless tyres. Use tubeless tape and sealant for a reliable setup. The rim bed is optimized for easy inflation and airtight sealing.
What tyre sizes are recommended for this rim?
The 23mm internal width is optimized for 25-28mm tyres. This pairing balances rolling resistance, comfort, and aerodynamics. Tyres wider than 28mm may not be ideal as they can increase drag and affect crosswind performance.
How much weight can I save with this rim?
At 580-610g per rim, this deep-section rim is competitive for its depth. Compared to standard alloy rims, you can save 200-400g per rim, depending on the baseline. The weight is well-balanced with the aerodynamic benefits for time trial and triathlon use.
Can I build this rim with custom spokes and hubs?
Yes, the rim is designed for custom wheel builds. It has a 6.5mm valve hole and is compatible with most spoke patterns. Spoke tension is validated at >300kg, so you can use high tension for stiffness. We recommend consulting a professional wheel builder for optimal spoke selection and lacing.
What maintenance does this rim require?
Regularly inspect the rim for impact damage, especially after heavy rides. Check spoke tension periodically and true the wheel if needed. The UV-cure resin finish is durable, but avoid using abrasive cleaners. For tubeless setups, refresh sealant every 6 months. The rim is covered by a 3-year warranty against structural defects.
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