Bola 700C 40mm Carbon Tubular Rim | 28mm Wide

$310.00 USD

~~$350.00 USD~~ $310.00 USD

Sale Sold out

Free shipping | VAT included in EU & USA

Weave UD Matt UD Glossy Marble Matt Marble Glossy

Spoke QTY 20/24 24/24 Customs

Weight Standard Superlight

The Bola 700C 35mm carbon tubular rim - a light 28mm-wide U-shape glued-tyre rim for climbing and windy all-round road racing.

The featherweight climber's tubular: the Bola 35mm tubular is the lightest in the tubular family, a shallow rim built for riders who count every gram. Thirty-five millimetres of T700/T800 UD carbon, 28mm wide, sold rim-only.

Buying Guide.

Weight tier - lightest layup ~285g: the featherweight climber's pick - lightest in the tubular family, for lighter racers on summit finishes.

Weight tier - heavier layup ~340g: the durable choice - more layup margin for rougher climbs and heavier riders.

Max rider weight: rated to 105kg - check rider + gear before ordering.

Same-depth series: the 35mm asymmetric metric tubular adds offset stiffness; the 35mm U-shape tubeless is the tubeless road version.

Adjacent depth: the 40mm tubular asymmetric adds aero; the 30mm asymmetric tubeless is shallower still.

Target Audience & Usage Notes.

Target audience.: Climbers and riders in windy terrain on tubulars.

Rim-only.

Glue your own tyres; use carbon-specific rim-brake pads; respect 85 psi and 105kg.

Not for riders unwilling to glue.

The Ride That Awaits.

Cement a 25-28mm tubular, lace to a featherweight climbing hub, and feel gravity loosen its grip: 285g of rim, modest 35mm of aero, the glued tyre turning every climb into a conversation. The lightest race tool in your kit. Free shipping, a 3-year rim warranty and crash-replacement discount.

Specifications

Size: 700c

Material: Genius Toray carbon fiber

Rim Depth: 35mm

Rim Type: Tubular / Glue-on

Glue Bed Width: 28

ERD (Effective Rim Diameter): 569mm

Weight Tier: Weight tiers 285-340g (see layup option)

Trade-offs & Considerations

Aero vs Crosswind: 35mm depth saves about 1.5W versus a 28mm rim at 40km/h; at 10° yaw this is the calmest depth of the tubular family, trading outright aero for easy handling on climbs and rolling roads.

Weight vs Stiffness: The lightest layup (285g) saves about 55g versus the heaviest option (340g) at the same 35mm depth (±5g); lateral stiffness holds within 3% across the layup range.

Tire-Type Trade-off: Glue-on tubulars give about 8% lower rolling resistance than clincher tubeless, but the tyre is glued: service every 3–6 months, no roadside puncture repair and no sealant-based flat prevention.

Sourcing & Delivery Trade-off: Stock drilling ships in 1–3 business days at $310; custom spoke-hole count or valve hole adds 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: >200 kgf (internal QC, static spoke-hole point load)

Dynamic Equilibrium: <3g (internal QC)

Radial Stiffness: 62–74 N/mm (internal lab)

Lateral Stiffness: 8–13 N/mm

Max System Weight: 105kg

Recommended Use Cases

Road Racing Builds: 2026 peloton standard is 28-30mm tubeless on wide rims (TdF 2026 avg ≈30mm); 35mm 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 (105kg); lighter for climbing, heavier for training and impact margin.

Compatibility

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

How It Compares

Model	Weight	Depth	Width	Price
700C 35mm Tubular Rim 28mm	Weight tiers 285-340g (see layup option)	35mm	N/A	See store
Model A	~430g	50mm	N/A	$1,399
Model B	~430g	50mm	N/A	$249
Model C	~420g	50mm	N/A	$389

FAQ

Do I get a bare rim here, or is it built up with a hub and spokes?

It's a bare carbon rim — no hub, spokes or nipples. Take it to any wheel builder to lace it to your own hub; we can also supply a built wheel on request.

Can I run clincher or tubeless tyres on this, or is it a glue-on tubular rim?

This is a dedicated tubular rim: you glue on tubular tyres. It is not drilled or shaped for clincher or tubeless clincher tyres.

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 spoke tension can I safely build to — will the holes pull out of the carbon?

Drive-side / disc-side maximum tension is 130–140 kgf, with the non-drive side adapted to match; the spoke holes are locally reinforced inside the carbon layup to prevent pull-out cracking.

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, and 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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