Bola 700C 45mm Carbon Tubular Rim | 28mm Wide
Bola 700C 45mm Carbon Tubular Rim | 28mm Wide
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The Bola 700C 45mm carbon tubular rim - a light 28mm-wide U-shape glued-tyre race rim for climbing and all-round road racing.
The climber's tubular: light, lively, still aero enough for the flats. The Bola 45mm tubular pairs a 45mm U-shape with the direct feel of a glued tyre, built for riders who want to float up climbs.
Buying Guide.
Weight tier - Superlight ~330g: the climber's pick - lightest end to float up climbs, for lighter racers.
Weight tier - Normal ~355g: the durable choice - a touch more layup margin for roughened mountain descents.
Max rider weight: rated to 110kg - check rider + gear before ordering.
Same-depth series: the 45mm U-shape tubeless is the tubeless road sibling; the 45mm gravel rim is the wide gravel version.
Adjacent depth: the 40mm tubular asymmetric climbs better; the 50mm tubular adds aero.
Target Audience & Usage Notes.
Target audience.: Climbers and stage racers on tubulars.
Rim-only.
Glue your own tyres; use carbon-specific rim-brake pads; respect the pressure limit and 110kg.
Not for riders unwilling to glue.
The Ride That Awaits.
Cement a 25-28mm tubular, lace to a lightweight climbing hub, and the mountain comes to you: 330g of rim, 45mm of aero, the glued tyre speaking back through every hairpin. Float up, then fly down. Free shipping, a 3-year rim warranty and crash-replacement discount - your climb starts here.
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- Wheelset weight (+/-2% tolerance, excluding rim tape and valves): Superlight 330g / Normal 355g (+/-15g)
- Rim depth: 45mm
- External width: 28mm
- Internal width: 28mm (tubular bed)
- ERD: 549mm
- Spoke Holes: 20/24
- Tubeless: Tubular (glued)
- Hooked/Hookless: Hooked tubular bed
- Max Tire Pressure: 145 psi (prose ~110 psi)
- Max System Weight: 110kg
- Material: T700/T800 Toray carbon
- Brake Type: Rim brake (carbon-specific pads)
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- Delivery vs Price: Factory-direct at $310 per rim (roughly half the cost of a single branded rim), but overseas dispatch takes 7-20 business days via FedEx/UPS/DPD Economy. Comparable Zipp 404 Firecrest ~$2,300-$1,600+ each.
- Weight vs Durability: 330g Superlight is extremely light; Normal 355g adds layup margin. Tubular beds are light because no hook is needed.
- Tubular vs Tubeless: Tubulars give direct feel but require gluing; the 45mm tubeless rim is more convenient.
- Rim-only Build: Hub, spokes and glue sold separately; spoke length from ERD 549mm.
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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 / Roundness: <0.25mm / <28mm (tubular bed) (internal QC)
- Max Spoke Tension: >300kg (internal QC)
- Radial / Lateral Stiffness: 90-110 N/mm radial; >=8 N/mm lateral (internal lab)
- Dynamic Balance: <Superlight 330g / Normal 355g (+/-15g) (internal QC)
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- Road Racing Builds: 2026 peloton standard is 28-30mm tubeless on wide rims (TdF 2026 avg ≈30mm); 45mm 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 (110kg); lighter for climbing, heavier for training and impact margin.
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- Frame: 700C (ISO 622) road frames with rim brakes
- Tire Type: Tubular (glued)
- Tire Width: 25-32mm tubular
- Valve: Presta (tubular valve)
- Brake: Rim brake - use carbon-specific pads
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| 700C Carbon Tubular Rim 45mm 28mm wide | - | - | - | Superlight 330g / Normal 355g (+/-15g) | 45mm | 28mm (tubular bed) | $310.00 |
| Model A | - | - | - | ~330g | 58mm | 24mm | ~$700 |
| Model B | - | - | - | ~350g F/420g R | 48mm | 24mm | ~$1,500 |
| Model C | - | - | - | ~370g | 49/55mm | ~25mm | ~$750 |
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What is the Bola 45mm Tubular Rim and what is included?
A single bare carbon rim, sold rim-only with no hub, spokes, nipples or tape - built to your choice of components or used as a single-rim replacement.
How do I mount a tubular?
Use tubular cement or tape and glue the tyre; inflate to the pressure limit. Tubulars require a glue process.
What tyre sizes fit?
25-32mm tubular; 25-28mm is the classic race choice.
Is 45mm good for climbing?
Yes - 330g Superlight is among the lightest in the line and 45mm depth is calm in gusts.
What is the ERD?
ERD 549mm; 20/24 holes.
How long is shipping and what warranty applies?
Free shipping, VAT included in EU & USA. 3-year rim warranty against manufacturing defects with crash-replacement discount. Dispatch 1-3 business days; FedEx/UPS/DPD Economy delivers in 7-20 business days.
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