Bola 700C 45/50mm Wave Carbon Tubeless Disc Rim | 28mm Wide
Bola 700C 45/50mm Wave Carbon Tubeless Disc Rim | 28mm Wide
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A 45/50mm U-shaped wave carbon rim with 28/22mm widths, tubeless-ready, disc-brake, and four weight tiers 360–440g.
Disc-Road Aero for Varied Courses
The BOLA 700C wave rim pairs a 28mm outer and 22mm internal U-shaped profile with 45mm or 50mm depth options. Disc-brake-specific construction removes brake-track compromises and optimizes the rim for modern road disc frames.
Buying Guide.
Weight tier - Extreme Light ~360g: lightest layup for smooth-road racers.
Weight tier - mid tiers ~380/410g: the balanced race middle.
Weight tier - top tier ~440g: durable for rough roads and larger riders.
Spoke drilling - the lighter drilling trims rotational mass but wants precise tensioning; the heavier drilling adds stiffness and load.
Depth - choose the shallower wave for climbing and wind, the deeper wave for flat-course aero.
Target Audience & Usage Notes.
Road racers, gran fondo riders, and custom disc-road wheelset builders.
Not for track racing or riders over 120kg.
The Ride That Awaits.
Roll off the start and feel the wide wave bed swallow 26-38mm rubber, the stiff wheel answering each attack as the deep section holds its own against the wind. It is a disc-road rim built for variety - sprints, hills, long rolling days. Free shipping and a 3-year warranty let you build without compromise.
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- Material: high-modulus Toray-grade carbon
- Rim depth: 45mm&50mm
- External width: 28mm
- Internal width: 22mm
- Size: 700c
- Profile: Wave U-shaped
- Weight Tier: 360g, 380g, 410g, 440g
- Max Tire Pressure: 110 psi
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- Aero vs Crosswind: Choose 50mm for maximum aero advantage on flat roads, but it is more susceptible to crosswinds. The 45mm depth offers better crosswind stability and climbing versatility, balancing aero and control.
- Weight vs Durability: Option from 360g (Extreme Light) is ideal for racing, prioritizing low weight. Heavier tiers (up to 440g) provide more durability for daily riding, with only a slight weight penalty.
- Climbing vs Flat: The 45mm depth is lighter and better suited for climbing, while the 50mm depth is designed to maximize aero efficiency on flat and rolling terrain.
- Tire Volume vs Speed: The 22mm internal width supports wider tires (28-32mm) for comfort and reduced rolling resistance, but narrower tires may offer better aerodynamics on smooth roads.
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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: 120kgs
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- Climbing / Hill Repeats: Excellent. With 45mm depth and lightest option (360g), it's great for climbs.
- Gran Fondo / Endurance: Good. Tubeless ready and 28-32mm tires provide comfort for long rides.
- Road Racing: Good. Aero profile and stiffness aid performance.
- Sprinting / Criterium: Suitable. 50mm depth offers more aero, but heavier weight may affect acceleration.
- Training / Daily Riding: Suitable. Durable versions (440g) and tubeless reduce flats.
- Not Recommended For: Not recommended for track racing or riders over 120kg.
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- Frame Compatibility: 700C disc brake road frames
- Tire Type: Tubeless or clincher
- Tire Width Range: 26-38mm (recommended)
- Brake Standard: Disc brake only
- Drivetrain: Compatible with all standard road drivetrains
- Rotor Standard: Varies by hub (center lock or 6-bolt)
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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 |
|---|---|---|---|---|---|---|---|
| Bola | N/A | 20/24H | N/A | 410g | 45mm&50mm | 22mm | see store |
| Aero 50 | N/A | N/A | N/A | 420g | 50mm | 28mm | ~$500 |
| Endurance 50 | N/A | N/A | N/A | 430g | 50mm | 28mm | ~$800 |
| Race 50 | N/A | N/A | N/A | 440g | 50mm | 28mm | ~$600 |
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How do I set up these rims tubeless?
Suitable for tubeless. Use tubeless tape, valve, and sealant. The 22mm internal width accepts tires from 28-32mm. Inflate to recommended pressures of 100-125 psi for tubeless use. Ensure tire bead locks into the rim.
What tire sizes are compatible?
The rims are designed for 700C (ISO 622) tires. Recommended tire width is 28-32mm. The internal width is 22mm, which provides good tire support. Clincher tires can also be used.
How much weight can I save with these rims?
The lightest option (Extreme Light) weighs from 360g, which is very light for a carbon rim. Other tiers include 380g, 410g, and 440g. Compared to standard alloy rims (around 500g), you can save 60-140g per rim.
Can I build these rims into a custom wheelset?
Yes, these rims are compatible with standard disc brake hubs. Available in 20 or 24 spoke drillings. You can build with your choice of hubs and spokes. The rims are tested for spoke tension >300kg.
What maintenance is needed for carbon rims?
Regularly check for impact damage, delamination, and cracks. Clean with mild soap and water. Avoid overheating from prolonged braking. Inspect the rim bed and spoke bed. Carbon rims are durable but require care to prevent stress fractures.
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