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Bola 32er 50mm Asymmetric Carbon Tubeless Rim | 38mm Wide

Bola 32er 50mm Asymmetric Carbon Tubeless Rim | 38mm Wide

Regular price $310.00 USD
Regular price $350.00 USD Sale price $310.00 USD
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The Bola 32er 50mm carbon rim - a 50mm deep, 38mm-external / 32mm-internal wide tubeless rim in 475-570g layups, for wide all-road and mixed-surface builds.

A wide-mouthed 50mm rim built for riders who reject the tyranny of the skinny tyre - broad, planted, and ready for whatever the mixed road throws down.

Buying Guide.

Weight tier - light ~475g (Midweight): for acceleration and endurance all-road miles.

Weight tier - heavy ~570g (Heavy): for rough gravel and larger riders who want impact margin.

Internal width - 32mm: 37-52mm at ~40-65 PSI for wide all-road and gravel.

Use it when you want a deep aero section paired with modern wide rubber; leave it for narrow-tyre road purity.

Adjacent size: the 32er 45mm rim ($310) is shallower and calmer in crosswinds.

Confirm final geometry against the spec table before lacing; respect the system weight limit.

Target Audience & Usage Notes.

wide all-road, gravel and mixed-surface wheel builders.

Disc frames only; choose 6-bolt or Center Lock hub. 120kg system limit.

Not for technical mountain trails.

The Ride That Awaits.

Set it tubeless with a 45c tyre and the bike plants itself, rolling over chattery road like a canoe on still water.

You stop thinking about the surface and start thinking about the horizon.

Free shipping and a 3-year rim warranty smooth the build.

Specifications
Size: 32er
Material: Genius Toray carbon fiber
Rim Depth: 50mm
Bead Type: Hooked
Inner Width: 32mm
Outer Width: 38mm
ERD (Effective Rim Diameter): TBD
Weight Tier: 475-570g
Trade-offs & Considerations
Aero vs Crosswind: The 50mm depth saves about 4.5W versus a 35mm rim at 40km/h; at 10° yaw the 38mm outer width keeps the tyre bed broad but the deeper section carries a stronger crosswind signature, suiting flatter rolling courses over exposed windy descents.
Weight vs Stiffness: The lightest 475g layup saves about 95g versus the 570g option at the same 50mm depth (±5g); the asymmetric profile balances rear spoke tension and lateral stiffness holds within 5% across the layup range.
Tire-Type Trade-off: The hooked bead accepts 28-32c clincher and tubeless tyres up to about 110 psi; tubeless cuts rolling resistance but needs tape, valve and sealant to seal the bed.
Sourcing & Delivery Trade-off: Stock drilling ships in 1-3 business days at $310; a custom spoke-hole count or decals add 7-15 business days and a roughly $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: 90–110 N/mm (internal lab)
Lateral Stiffness: ≥8N/mm
Max System Weight: 120kgs
Recommended Use Cases
Sprinting / Criterium: Good
Triathlon / TT: Excellent
Road Racing: Good
Gran Fondo / Endurance: Good
Climbing / Hill Repeats: Not recommended
Not Recommended For: Technical mountain trails
Compatibility
Frame Compatibility: Compatible with modern road and gravel frames designed for disc brakes.
Tire Type: Tubeless-ready and clincher capable.
Tire Width Range: 37-52mm recommended.
Brake Standard: Disc brake, 6-bolt and Centerlock compatible.
Drivetrain: Compatible with standard road/gravel drivetrains.
Rotor Standard: 6-bolt or Centerlock.
How It Compares
FAQ
What tyre widths fit this rim?
With a 32mm internal width, run 28-32c clincher or tubeless tyres for endurance road and higher-volume gravel.
What pressure can I run?
Set up tubeless and inflate to seat the bead, then run up to about 110 psi (7.6 bar) maximum.
How much weight do I save versus stock?
Choose the 475g layup to save roughly 200-300g per rim versus a typical alloy rim; the 570g option adds durability.
Which brake type is compatible?
Disc brake builds only - this rim has no rim-brake braking surface.
What does the asymmetric profile do?
It offsets the spoke bed to balance tension on the rear wheel, improving durability and trueness under disc braking.
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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