Bola 700C 55mm Asymmetric Carbon Tubeless Rim | 28mm Wide
Bola 700C 55mm Asymmetric Carbon Tubeless Rim | 28mm Wide
Couldn't load pickup availability
The Bola 700C 55mm asymmetric carbon tubeless rim - a 28mm-wide offset-bed Toray aero rim for stiff, true aero road and disc-brake builds.
The stiff aero rim: the Bola 55mm asymmetric tubeless offsets the spoke bed to the drive side, evening spoke tension for a stiffer, truer rear wheel. Fifty-five millimetres of Toray carbon, 28mm wide, sold rim-only.
Buying Guide.
Weight tier - Extreme Light ~430g: the racer's pick - lightest end for a stiff, disc-built aero wheel, for lighter riders.
Weight tier - Ultralight ~450g: the balanced middle - lively on rolling hills, stable at 55mm depth.
Weight tier - Superlight ~465g: the all-rounder band - impact margin for a season of racing.
Weight tier - Standard ~515g: the durable daily hoop for larger riders and rougher roads; the extra grams buy impact margin.
Max rider weight: rated to 120kg - check rider + gear before ordering.
Same-depth series: the 55mm U-shape tubeless is the symmetric version; the 55mm tubular is the glued race option; the 55mm road rim is the wide-outer take.
Adjacent depth: the 50mm offset tubeless climbs better; the 60mm U-shape goes deeper on the flat.
Target Audience & Usage Notes.
Target audience.: Road racers and aero builders wanting disc-friendly offset.
Rim-only.
Seat tubeless beads with a compressor; respect 110 psi and 120kg.
Not for steep climbing or crosswind novices.
The Ride That Awaits.
Lace it to a disc road hub, seat a 28-32c tubeless, and stand on the pedals at dawn: the offset builds hold a true, stiff wheel, the carbon humming through fast descents, the 55mm section slicing cleanly past the bars. Where shallow wheels give way, this one holds firm. Free shipping, a 3-year rim warranty and crash-replacement discount - build your aero, keep your peace.
Translation missing: en.product.metafields.specifications
- Wheelset weight (+/-2% tolerance, excluding rim tape and valves): Extreme Light 430g / Ultralight 450g / Superlight 465g / Standard 515g (+/-10-15g)
- Rim depth: 55mm
- External width: 28mm
- Internal width: 21mm hooked / 23mm hookless
- ERD: ~555mm (estimated)
- Spoke Holes: 20/20 (20/24/28/32 configurable)
- Tubeless: Tubeless-ready clincher
- Hooked/Hookless: Hooked or hookless
- Max Tire Pressure: 110 psi
- Max System Weight: 120kg
- Material: T700/T800 Toray UD carbon
- Asymmetry: Asymmetric offset spoke bed
- Brake Type: Disc or rim brake (hub-dependent)
Translation missing: en.product.metafields.tradeoffs
- 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.
- Stiffness vs Compliance: The asymmetric offset evens spoke tension for a stiffer, truer rear wheel - ideal for disc builds where the drive-side flange is crowded.
- Weight vs Durability: 430g Extreme Light is race-only; Standard 515g is tougher up to 120kg.
- Rim-only Build: Hub, spokes and tape sold separately; ERD not explicitly stated -> .
Translation missing: en.product.metafields.performance
- Fatigue Test: 750,000 cycles @640N (ISO 4210-7 Annex A, informative only)
- Impact Resistance: >40J (ISO 4210-7 reference)
- Flatness / Roundness: <0.25mm / <0.3mm (internal QC)
- Max Spoke Tension: >300kg (internal QC)
- Radial / Lateral Stiffness: 90-110 N/mm radial; >=8 N/mm lateral (internal lab)
- Dynamic Balance: <3g (internal QC)
Translation missing: en.product.metafields.usecases
- 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.
Translation missing: en.product.metafields.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)
Translation missing: en.product.metafields.compares
| Translation missing: en.product.metafields.model | Translation missing: en.product.metafields.hub | Translation missing: en.product.metafields.spoke | Translation missing: en.product.metafields.bearing | Translation missing: en.product.metafields.weight | Translation missing: en.product.metafields.depth | Translation missing: en.product.metafields.width | Translation missing: en.product.metafields.price |
|---|---|---|---|---|---|---|---|
| Bola 55mm 28mm Carbon Road Rim | - | - | - | Extreme Light 430g / Ultralight 450g / Superlight 465g / Standard 515g (+/-10-15g) | 55mm | 21mm hooked / 23mm hookless | $310 |
| Model A | - | - | - | 411-415g | 50/56mm | 32mm | $1,095 |
| Model B | - | - | - | ~420g | 45/50mm | 28.2mm | ~$1,400 |
| Model C | - | - | - | ~400g | 50mm | 28mm | ~$220 |
Translation missing: en.product.metafields.faq
What is the Bola 55mm Asymmetric Tubeless 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.
What does asymmetric drilling do?
The spoke bed is offset toward the drive side, evening left/right spoke tension for a stiffer, truer rear wheel - especially useful on disc hubs.
What tyre sizes fit?
25-40mm tubeless; 28-32mm is the aero sweet spot.
Hooked or hookless?
Choose hooked (21mm, higher pressure, more tyres) or hookless (23mm, more volume, ETRTO-certified tyres only at 72-87 psi).
What is the ERD?
ERD not explicitly stated on the page - confirm with Bola before ordering spokes.
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.
Translation missing: en.product.metafields.warranty
- Translation missing: en.product.metafields.period_label: Translation missing: en.product.metafields.period_value
- Translation missing: en.product.metafields.coverage_label: Translation missing: en.product.metafields.coverage_value
- Translation missing: en.product.metafields.crash_label: Translation missing: en.product.metafields.crash_value
- Translation missing: en.product.metafields.processing_label: Translation missing: en.product.metafields.processing_value
- Translation missing: en.product.metafields.shipping_method_label: Translation missing: en.product.metafields.shipping_method_value
- Translation missing: en.product.metafields.eta_label: Translation missing: en.product.metafields.eta_value
- Translation missing: en.product.metafields.packaging_label: Translation missing: en.product.metafields.packaging_value
