• 700C Carbon Road Rim | 28mm Wide | 40mm & 45mm Depth | Disc Brake | 24-Spoke Bola
  • 700C Carbon Road Rim | 28mm Wide | 45mm & 50mm Depth | Disc Brake | 20/24-Spoke Bola
  • 700C Carbon Road Rim | 28mm Wide | 45mm & 50mm Depth | Disc Brake | 20/24-Spoke Bola
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Bola 700C 40/45mm Wave Carbon Tubeless Road Rim | 28mm Wide

Bola 700C 40/45mm Wave Carbon Tubeless Road Rim | 28mm Wide

$310.00 USD
$350.00 USD $310.00 USD
Sale Sold out
Free shipping  |  VAT included in EU & USA
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Weight
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The Bola 700C 40/45mm wave carbon road rim - a wavy 40/45mm aero rim with 28mm outer / 22mm internal width in four light tiers, for climbing and all-round aero builds.

A shallower wavy profile that pairs climbing legs with aero brains - proof that speed need not carry the weight of a deep-section albatross.

Buying Guide.

Weight tier - ~350g (Ultralight): the pure climber's pick for hill repeats and hilly races.

Weight tier - ~370g (Ultralight): the quick all-round race choice.

Weight tier - ~395g (Light): balanced for regular training and racing.

Weight tier - ~430g (Light): the durable end for heavier riders and rough roads.

Depth choice: pick 40mm for climbs and crosswinds, or 45mm for a little more flat aero.

Same-depth series: the 40mm 23mm UV rim ($310) and the 45mm 34/28mm wide rim ($310) cover adjacent road styles.

Adjacent depth: the 55/60mm wave rim ($310) adds flat aero; this 40/45mm rim stays light and nimble.

Target Audience & Usage Notes.

climbers, all-round racers and wheel builders.

Disc-brake road frames; 24-hole drilling. 110kg system weight.

Not for heavy off-road use.

The Ride That Awaits.

Lace it light and the rim accelerates like a sprinter off the blocks, climbing with you then sliding into the aero sweep.

The wave shape keeps it honest in the gusts.

Free shipping and a 3-year rim warranty close out a light, versatile package.

Specifications
Size: 700c
Material: Genius Toray carbon fiber
Rim Depth: 40/45mm
Bead Type: Hooked
Inner Width: 22mm
Outer Width: 28mm
ERD (Effective Rim Diameter): 555
Weight Tier: 350g, 370g, 395g, 430g
Trade-offs & Considerations
Aero vs Crosswind: The 40/45mm wave profile saves about 3.5W versus a 32mm rim at 40km/h; the 28mm outer width keeps the section narrow, so at 10° yaw it feels calmer than a wider 45mm rim, trading a little raw aero for lighter steering.
Weight vs Stiffness: The lightest tier (350g) saves 80g versus the heaviest (430g) (±5g) at the same 40/45mm depth; lateral stiffness holds within 3% across tiers.
Tire-Type Trade-off: The 22mm hooked inner width suits 28–32mm tubeless road tyres; tubeless cuts rolling resistance and pinch flats but requires tape, valve and sealant.
Sourcing & Delivery Trade-off: Stock drilling ships in 1–3 business days at $310; custom spoke count 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: <0.15mm (internal QC)
Roundness: <0.3mm (internal QC)
Max Spoke Tension: >350 kgf (internal QC, spoke breaking tension)
Ultimate Strength: >200 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: 110
Recommended Use Cases
Climbing / Hill Repeats: Excellent
Gran Fondo / Endurance: Excellent
Road Racing: Excellent
Sprinting / Criterium: Good
Training / Daily Riding: Good
Not Recommended For: Not recommended
Compatibility
Frame Compatibility: 700c road frames with disc brake mounts
Tire Type: Clincher and tubeless
Tire Width Range: 26-38mm
Brake Standard: Disc
Drivetrain: N/A
Rotor Standard: N/A
How It Compares
ModelWeightDepthWidthPrice
700C 40/45mm Rim 28mm 350g, 370g, 395g, 430g 40–45mm 28mm See store
Model A ~430g 50mm 28mm $1,399
Model B ~420g 50mm 30mm $389
Model C ~430g 50mm 27mm $249
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 40/45mm 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 supports wider road tyres from 28mm to 32mm for comfort and puncture protection.
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
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