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55mm Tubeless Carbon Road Rim 32mm outer 26mm Inner| Bola

55mm Tubeless Carbon Road Rim 32mm outer 26mm Inner| Bola

Regular price $340.00 USD
Regular price $400.00 USD Sale price $340.00 USD
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Free shipping  |  VAT included in EU & USA
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The Bola 700C 55mm tubeless carbon road rim - a mid-deep 32mm external / 26mm internal Toray carbon aero rim for road racing and fast all-round builds.

Between the all-rounder and the time-trial weapon sits the 55mm rim - deep enough to matter on the flat, sane enough to hold its line in the gusts. The Bola 55mm road rim pairs a 32mm outer width with a 26mm inner bed, sold rim-only for builders who want aero without full TT commitment.

Buying Guide.

Weight tier - Extreme Light ~445g: the racer's pick - lightest end for breakaways and rolling hills, for lighter riders.

Weight tier - Ultralight ~465g: the balanced middle - lively enough to sprint, stable enough at this depth.

Weight tier - Superlight ~485g: the all-rounder band - impact margin for a season of racing.

Weight tier - Standard ~535g: the durable choice for larger riders and rougher courses.

Max rider weight: rated to 120kg - check rider + gear before ordering.

Same-depth series: the 55mm U-shape tubeless is the narrower disc-brake version; the 55mm asymmetric balances disc spoke tension; the 55mm tubular is the glued race option.

Adjacent depth: the 50mm road/gravel rim climbs better; the 60mm road rim goes deeper for pure flat speed.

Target Audience & Usage Notes.

Target audience.: Road racers, gran fondo riders and fast group-ride builders.

Rim-only.

Seat tubeless beads with a compressor; respect 90 psi and 120kg.

Not for steep climbing, aggressive gravel or crosswind novices.

The Ride That Awaits.

Lace it to a quality hub, seat a 28-32c tubeless, and roll out: planted in the gusts, eager on the rises, the 55mm section holding speed without the nervous chatter of a sharp V. One aero wheel for your whole season - that is the invitation. Free shipping, a 3-year rim warranty and crash-replacement discount make the leap effortless.

Specifications
Size: 700c
Material: Genius Toray carbon fiber
Rim Depth: 55mm
Bead Type: Hooked
Inner Width: 26mm
Outer Width: 32mm
ERD (Effective Rim Diameter): 528mm
Weight Tier: Extreme Light 445g / Ultralight 465g / Superlight 485g / Standard 535g (+/-10-15g)
Trade-offs & Considerations
Aero vs Crosswind: 55mm depth saves about 5.5W versus a 35mm rim at 40km/h; at 10° yaw the 32mm outer width keeps steering predictable on flat and rolling courses, at the cost of a stronger crosswind signature than a 50mm rim.
Weight vs Stiffness: The Extreme Light tier (445g) saves about 90g versus the Standard tier (535g) at the same 55mm depth (±5g); lateral stiffness holds within 3% across tiers.
Tire-Type Trade-off: The hooked bead accepts clincher and tubeless tyres from about 31mm to 48mm on the 26mm internal width; tubeless lowers rolling resistance and pinch-flat risk but needs tape, a valve and sealant.
Sourcing & Delivery Trade-off: Stock drilling ships in 1–3 business days at $340; custom spoke-hole 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: <0.25mm (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: 80–92 N/mm (internal lab)
Lateral Stiffness: 16–23 N/mm
Max System Weight: 120kg
Recommended Use Cases
Road Racing Builds: 2026 peloton standard is 28-30mm tubeless on wide rims (TdF 2026 avg ≈30mm); 55mm section suits 40+ km/h racing.
Gran Fondo / Endurance: Modern 2026 frames (Propel, SuperSix, S5) design around 30-32mm clearance; 21mm inner bed pairs 25-32mm tubeless per ETRTO 2026 guidance.
Wheel Building: Custom road builds with disc or rim hubs; UD carbon layup options for weight-conscious or durable builds.
Weight Tier Selection: Offered in weight tiers (120kg); lighter for climbing, heavier for training and impact margin.
Compatibility
Frame: 700C (ISO 622) road frames; brake type hub-dependent
Tire Type: Tubeless-ready clincher
Tire Width: 31-48mm (min 28mm)
Valve: 6.5mm Presta
Brake: Rim-only; disc or rim brake hub per build
How It Compares
ModelWeightDepthWidthPrice
700C 55mm Rim 32mm Extreme Light 445g / Ultralight 465g / Superlight 485g / Standard 535g (+/-10-15g) 55mm 32mm 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 a deep-section rim handle crosswinds — will steering get pulled around?
An optimised profile keeps steering torque predictable at 10°–15° yaw, so high-speed descents stay planted even on deep-section builds.
What tyres can I mount on this rim, and what pressure should I run?
The 26mm inner width is optimised for tubeless tyres from 31mm to 48mm, with a 28mm minimum; 28c is the aero sweet spot.
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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