Bola 700C 45/50mm Wave Carbon Tubeless Disc Rim | 28mm Wide
Bola 700C 45/50mm Wave Carbon Tubeless Disc Rim | 28mm Wide
Regular price
$310.00 USD
Regular price
$350.00 USD
Sale price
$310.00 USD
Free shipping | VAT included in EU & USA
Quantity
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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.
Specifications
Size: 700c
Material: Genius Toray carbon fiber
Rim Depth: 45mm&50mm
Bead Type: Hooked
Inner Width: 22mm
Outer Width: 28mm
ERD (Effective Rim Diameter): 545
Weight Tier: 360g, 380g, 410g, 440g
Trade-offs & Considerations
Aero vs Crosswind: The 45/50mm wave profile saves about 4.0W versus a 35mm rim at 40km/h; at 10° yaw the undulating wave shape and 28mm outer width keep side-steering gentler than a plain 50mm box section.
Weight vs Stiffness: The lightest tier (360g) saves about 80g versus the heaviest tier (440g) at the same depth (±5g); lateral stiffness holds within 3% across layups, validated to over 300kg spoke tension.
Tire-Type Trade-off: The hooked bead accepts clincher and tubeless tyres from about 28mm to 32mm on the 22mm internal width; tubeless lowers rolling resistance and pinch flats but needs tape, a valve and sealant.
Sourcing & Delivery Trade-off: Stock drilling (20 or 24 holes) ships in 1–3 business days at $310; a custom drilling or decals add 7–15 business days and roughly a $40–80 premium.
Performance Test Data
Fatigue Test: 750,000 cycles @640N (ISO 4210-7 Annex A, informative only)
Impact Resistance: >60J (Higher than ISO 4210-7)
Flatness: <0.25mm (internal QC)
Roundness: <0.3mm (internal QC)
Max Spoke Tension: >350 kgf (internal QC, spoke breaking tension)
Ultimate Strength: >300 kgf (internal QC, static spoke-hole point load)
Dynamic Equilibrium: <3g (internal QC)
Radial Stiffness: 90–110 N/mm (internal lab)
Lateral Stiffness: ≥8N/mm
Max System Weight: 120kgs
Recommended Use Cases
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.
Compatibility
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)
How It Compares
| Model | Weight | Depth | Width | Price |
|---|---|---|---|---|
| 700C 45/50mm Rim 28mm | 360g, 380g, 410g, 440g | 45/50mm | 28mm | See store |
| Model A | ~430g | 50mm | 28mm | $1,399 |
| Model B | ~430g | 50mm | 27mm | $249 |
| Model C | ~420g | 50mm | 30mm | $389 |
FAQ
What spoke drillings are available, and which brake type is this rim rated for?
Spoke drillings and brake rating depend on the build option, selectable at checkout. If you plan to lace your own wheel, confirm the drilling and brake type with Bola before ordering so the rim matches your hub and frame.
What is the maximum spoke tension for this rim?
Drive-side / disc-side max tension is 130–140 kgf, with the non-drive side adapted to match; spoke holes are locally reinforced inside the carbon layup to prevent pull-out cracking.
How does this wave-profile rim handle crosswinds — does the shape really help?
The 45/50mm builds use a wave-profile outer width that breaks lateral air vortices at 10°–15° yaw, cutting steering torque by about 25% versus a straight-profile rim of the same depth. High-speed descents stay planted.
What tyres can I mount on this rim, and what pressure should I run?
The 22mm inner width accepts clincher and tubeless tyres from 28mm to 32mm.
Will I really pay no customs or VAT for delivery to the US and EU?
Yes. The Economy channel ships DDP — duties and VAT are fully prepaid by us, cleared in advance, delivered to your door with no extra payment to customs or the courier.
Warranty & Shipping
Warranty Period: 3 years
Crash Replacement: 30% discount on replacement parts
Processing Time: In stock: 1–3 business days · Out of stock or custom order: 7–15 business days
Shipping method: FedEx/UPS/DPD/EMS Economy (free with duties & VAT included in USA & EU) · Expedited option available
Estimated Delivery: Economy 7–20 business days · Expedited 3–7 business days, customs clearance excluded
