Bola 700C 35mm Carbon Tubeless Rim | 25mm Wide Road Gravel XC

$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 Ultralight Extremelight

The Bola 700C low-profile carbon rim — a 35mm-deep, narrow 18-20mm-internal hoop (365-400g) built for climbing and mixed surfaces.

The neutral-handling lightweight: a 35mm low-profile U-shape and a narrow inner channel deliver a calm crosswind feel at a featherweight — built for riders who want climbing agility and mixed-surface versatility.

Buying Guide.

Weight tier - Superlight ~365g: the Ultralight climber's build - fast spin-up for mountainous gran fondos and mixed-surface rides.

Weight tier - Standard ~400g: the Light-grade durability build - choose it for training miles and larger riders.

Internal width - 18mm (20mm option): a narrow, fast platform for 21-30mm tires - choose it for climbing and speed, not for wide-tire comfort.

Same-family: this is the narrowest, lowest-profile road rim; favour it for climbs and mixed terrain over deep aero racing.

Rated to a 105kg system weight; confirm rim vs disc brake at order.

Target Audience & Usage Notes.

Climbers, gran fondo, road and light gravel; not deep-aero racing.

Max system weight 105kg.

Note: brake compatibility (rim vs disc) should be confirmed at order.

The Ride That Awaits.

Climb out of the saddle and it comes alive instantly - a narrow, light hoop that spins up like a feather, made for mountainous gran fondos where grams are king. The low, neutral profile never twitches, even when the road kicks up. Choose the superlight layup and build a nimble wheelset; a 3-year rim warranty lets you attack the hills.

Specifications

Size: 700c

Material: Genius Toray carbon fiber

Rim Depth: 35mm

Bead Type: Hooked

Inner Width: 18mm

Outer Width: 25mm

ERD (Effective Rim Diameter): 569

Weight Tier: Superlight (365±15g) / Standard (400±15g)

Trade-offs & Considerations

Aero vs Crosswind: The 35mm depth saves about 2.5W versus a 28mm rim at 40km/h; at 10° yaw the narrow 25mm outer width keeps the side-wind signature low, making it a calmer climbing rim than a 50mm section.

Weight vs Stiffness: The Superlight tier (365g) saves about 35g versus the Standard tier (400g) at the same 35mm depth (±5g); lateral stiffness holds within 3%, and the thinner layup is best for lighter riders.

Tire-Type Trade-off: The hooked bead accepts clincher and tubeless tyres from about 25c to 32c on the 18mm inner width; tubeless runs lower pressure but needs tape, valve and sealant, while the narrow inner width favours 28c road tyres over wide gravel.

Sourcing & Delivery Trade-off: Stock drilling ships in 1–3 business days at $310; 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: >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: 105kgs

Recommended Use Cases

Climbing / Hill Repeats: Excellent – low weight (365±15g) aids acceleration.

Gran Fondo / Endurance: Good – compliant and stable for long rides.

Road Racing: Good – lightweight and responsive, but not as aero as deeper rims.

Sprinting / Criterium: Suitable – stiff enough for sprints, but low profile may not offer aero advantage.

Training / Daily Riding: Excellent – durable and tubeless-ready for daily use.

Not Recommended For: Deep aero racing where maximum aerodynamic efficiency is needed, or heavy downhill riding.

Compatibility

Frame Compatibility: Road hardtail frames accepting 700C rims,QR 130mm

Tire Type: Tubeless-ready (hooked and hookless)

Tire Width Range: 21-30mm

Brake Standard: Rim brake

Drivetrain: Compatible with all drivetrains (frame dependent)

Rotor Standard: Requires hub with rotor mount (6-bolt or centerlock)

How It Compares

Model	Weight	Depth	Width	Price
700C 35mm Rim 25mm	Superlight (365±15g) / Standard (400±15g)	35mm	25mm	See store
Model A	~430g	50mm	28mm	$1,399
Model B	~430g	50mm	27mm	$249
Model C	~420g	50mm	30mm	$389

FAQ

Which tyres fit on the 18mm inner rim, and what pressure suits me?

The 18mm inner width is built for 25mm–32mm tyres — a 28mm for road, a 32mm for light gravel; it is a hooked bed, so standard clinchers mount directly.

How do I work out the right spoke length for this rim?

Contact Bola for the exact ERD before ordering spokes. Once we confirm the figure, plug it into a known calculator (Sapim / DT) and add the recommended correction.

What is the maximum spoke tension I can run on 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.

Do these rims accept standard clincher tyres, and is there a pressure cap?

Hooked rims fit standard clincher tyres directly, no hookless pressure cap applies.

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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