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Bola 700C 35mm Asymmetric Carbon Tubeless Rim | 28mm Wide

Bola 700C 35mm Asymmetric Carbon Tubeless Rim | 28mm Wide

Regular price $310.00 USD
Regular price $350.00 USD Sale price $310.00 USD
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The Bola 700C 35mm asymmetric carbon rim - a 28mm-wide offset-bed Toray climbing rim for stiff, true climbing and all-round road builds.

The featherweight climber's rim: the Bola 35mm asymmetric offsets the spoke bed for a stiff, true wheel while keeping it light. Thirty-five millimetres of Toray carbon, 28mm wide, sold rim-only.

Buying Guide.

Weight tier - Extreme Light ~330g: the featherweight climber's pick - lightest end with the offset bed for a stiff, true rear wheel.

Weight tier - Ultralight ~350g: the balanced middle - lively on climbs, calm in the wind.

Weight tier - Superlight ~370g: the steady build - impact margin for windy training days.

Weight tier - Standard ~415g: the durable choice for heavier riders and rough roads.

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

Same-depth series: the 35mm U-shape tubeless is the symmetric version; the 35mm tubular is the glued race option.

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

Target Audience & Usage Notes.

Target audience.: Climbers and riders in windy terrain.

Rim-only.

Seat tubeless beads with a compressor; respect 110 psi and 105kg.

Not for flat TT or riders over 105kg.

The Ride That Awaits.

Lace it to a climbing hub, seat a 28-32c tubeless, and the offset bed builds a stiff, true rear wheel: 330g of rim, 35mm of modest aero, utterly calm when the wind picks a fight. The climber's light everyday companion, yours. Free shipping, a 3-year rim warranty and crash-replacement discount.

Specifications
Size: 700c
Material: Genius Toray carbon fiber
Rim Depth: 35mm
Bead Type: Hooked
Inner Width: 21mm hooked / 23mm hookless
Outer Width: 28mm
ERD (Effective Rim Diameter): 568mm
Weight Tier: Extreme Light 330g / Ultralight 350g / Superlight 370g / Standard 415g (+/-10-15g)
Trade-offs & Considerations
Aero vs Crosswind: The 35mm depth balances aero and handling; it saves about 3.0W versus a 25mm rim at 40km/h, and at 10° yaw the 28mm outer width keeps crosswind steer mild — the all-round aero choice between the 30mm climbing and 40mm fast options.
Weight vs Stiffness: The Extreme Light tier (330g) saves about 85g versus the Standard tier (415g) (±5g); lateral stiffness holds within 3% because the asymmetric spoke bed and the 28mm outer wall are shared across tiers.
Tire-Type Trade-off: The hooked bed (21mm internal) allows higher pressure, while the hookless option (23mm internal) runs wider ETRTO-certified tyres around 72–87 psi; both accept 25c–40c tubeless.
Sourcing & Delivery Trade-off: Stock 20/20 drilling ships in 1–3 business days at $310; custom hole counts (20/24/28/32) 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: >40J (ISO 4210-7 reference)
Flatness: <0.25mm (internal QC)
Roundness: <0.3mm (internal QC)
Max Spoke Tension: >300kg (internal QC)
Ultimate Strength: >100kg (internal QC)
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; disc or rim brake per hub
Tire Type: Tubeless-ready clincher
Tire Width: 25-40mm
Valve: Presta
Brake: Disc or rim brake (hub-dependent)
How It Compares
FAQ
What tyre sizes fit this rim?
25c–40c tubeless; 28c–32c is the aero sweet spot.
Hooked or hookless, and what is the difference?
Choose hooked (21mm internal, higher pressure) or hookless (23mm internal, more volume, ETRTO-certified tyres at 72–87 psi).
What is the ERD for spoke length calculation?
ERD is 568mm; the 20/20 holes are configurable to 20/24/28/32.
Which weight tiers are available?
Extreme Light (330g), Ultralight (350g), Superlight (370g) and Standard (415g), ±10–15g.
Is this sold as a complete wheel?
No. This is a bare rim only — no hub, spokes, nipples or tape; build it to your chosen components.
Warranty & Shipping
Warranty Period: 3 years
Crash Replacement: 30% discount on replacement parts
Processing Time: 1–3 business days (standard stock); 7–15 business days (custom)
Estimated Delivery: 7–15 business days (standard); 3–5 business days (expedited)
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