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Overfast 37mm carbon road wheel front view

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Overfast 50mm carbon road wheel with deep section rim

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Road Wheelsets OVERFAST

OVERFAST Ultralight Carbon Wheelset

Q: What is the warranty?

This wheelset includes a 2-year manufacturer warranty. If an issue occurs, Underdogs Cycling will guide you through the claims process and coordinate with the manufacturer where applicable.

Q: Which depth should I choose: 37 mm or 50 mm?

Choose 37 mm if you want the lightest, most responsive all-round feel. Choose 50 mm if you want a more aerodynamic option while staying exceptionally light.

Q: Is the hub interface Center Lock?

Yes. This wheelset uses Center Lock hubs.

$2,250.00 USD

0 products in stock

The Overfast Ultralight Carbon Wheelset is designed for riders who prioritize low weight without compromising safety or durability. Available in 37 mm or 50 mm rim depths, the wheelset uses a 23 mm internal hooked rim optimized for modern road tires and real-world riding conditions. Rims are validated beyond UCI impact requirements, paired with carbon spokes, a 1:1 lacing pattern, and Center Lock hubs with TPI ceramic bearings for stable performance and long-term reliability. Built for disc-brake road bikes using 12×100 / 12×142 thru-axles, with Shimano 11/12-speed or SRAM XDR freehub options.

Customer Support Our dedicated team is always here to help with sizing, builds, and orders.

Warranty Protected 2-year manufacturer warranty

Shipping Included Included on most components and wheelsets. Free on orders over $100. Worldwide delivery with tracking.

Rider Approved We test and ride what we sell. Every product is hand-selected for quality and performance.

Overfast Ultralight Carbon Wheelset (37 / 50) — Center Lock • Carbon Spokes

The Overfast Ultralight Wheelset is engineered with a safety-first approach: low weight achieved through materials control and manufacturing precision—not reduced safety margins. Choose 37 mm or 50 mm rim depth. Both configurations use a modern 23 mm internal hooked-bead rim, carbon spokes, and a validated hub system with TPI ceramic bearings. Built for fast acceleration, stable handling, and real-world durability, backed by a 2-year warranty.

Spec Snapshot:
37/50 mm depth • 23 mm internal (hooked) •
968 g / 1016 g (±15) g •
100 kg rider limit • Center Lock • Shimano 11/12s or SRAM XDR

Overfast Ultralight Wheelset — Features & Benefits

Pick Your Depth: 37 mm for all-round responsiveness or 50 mm for more aerodynamic efficiency.
Modern Wide Rim: 23 mm internal hooked-bead profile for stable tyre shaping and confident road handling.
Carbon Spokes (Serviceable): low weight with a proven system designed for durability and long-term ownership.
Center Lock Hubs: clean rotor interface with broad rotor compatibility.
TPI Ceramic Bearings: smooth rolling and reduced friction under load.
Conservative 1:1 Build: stable tension and predictable behavior over sustained use.

Safety & Validation — Built Beyond Standard Requirements

Impact Resistance

UCI impact requirement: 40 J
Overfast validation: passed 100 J impact testing (≈ 2.5× margin)
Added confidence against real-world debris and unexpected impacts.

Fatigue & Stiffness Testing

Passed standard fatigue testing.
UV-shaped rim profile + optimized carbon layup for lateral stiffness with controlled compliance.

Carbon & Manufacturing Process

Rims are manufactured in-house at an equity-owned composite facility (not outsourced OEM).
Top-grade fibers including Toray T1100 and T800 (or higher).
Laser-guided layup positioning for millimeter-level consistency and efficient material use.
Lead engineers with 20+ years high-end composite layup experience.

Spokes, Hubs & Wheel Build Philosophy

Carbon spokes: low weight, durable, and designed for serviceability/repairability.
Hub platform: refined over 2+ years, athlete-tested, and validated through fatigue and impact testing.
Bearings: TPI ceramic bearings.
Brake interface: Center Lock.
Lacing: conservative 1:1 for stability and long-term reliability.

Warranty: 2 years. Claims are managed responsibly.

Overfast Ultralight Wheelset — Specifications

Rims & Tyres

Wheel Size: 700C
Bead Type: Hooked bead
Internal Width: 23 mm
Depth Options: 37 mm or 50 mm
External Width: 37 mm = 28 mm • 50 mm = 29 mm
Drilling: 20H front / 20H rear
Max Tyre Pressure (28c): 110 psi
Tyre sizing guidance: Overfast does not publish a specific maximum tyre size. Follow tyre manufacturer guidance for fitment and pressure and do not exceed stated wheelset pressure limits.

Hubs & Spokes

Hubs: Overfast hubs • Center Lock
Bearings: TPI ceramic
Spokes: Overfast carbon spokes (3.5–1.5)
Lacing: 1:1 configuration
Axles: 12×100 (F) / 12×142 (R)
Freehub: Shimano 11/12s • SRAM XDR

Weights & Limits

Rider Weight Limit: 100 kg
37 mm Wheelset Weight: 968 g (±15) g • Front ≈ 432 g • Rear ≈ 536 g • Rim ≈ 279 g
50 mm Wheelset Weight: 1016 g (±15) g • Front ≈ 462 g • Rear ≈ 554 g • Rim ≈ 330 g

Overfast Ultralight — Rim Depth Comparison

Two configurations: 37 mm for all-round responsiveness, or 50 mm for more aerodynamic efficiency—both built with a safety-first rim structure.

Spec	Ultralight 37	Ultralight 50
Rim Depth	37 mm	50 mm
External Width	28 mm	29 mm
Internal Width	23 mm
Bead	Hooked bead
Drilling	20H front / 20H rear
Max Pressure (28c)	110 psi
Brake Interface	Center Lock
Axles	12×100 (F) / 12×142 (R)
Freehub	Shimano 11/12s • SRAM XDR
Spokes	Overfast carbon spokes (3.5–1.5) • 1:1 build
Approx. Weight (pair)	968 g (±15)	1016 g (±15)
Rim Weight (each)	≈ 279 g	≈ 330 g
Rider Limit	100 kg

All weights are manufacturer-claimed and may vary by finish and freehub body.

Helpful Links

Browse our wheelsets and components.

Learn more about the Center Lock rotor installation and removal procedure and always install rotors using manufacturer torque specifications.

Overfast Ultralight Carbon Wheelset — FAQ

How fast does it ship?

Orders ship once processing is complete and a tracking number is generated. Delivery time depends on destination. If you want an ETA before ordering, message us with your location and the product you’re considering.

Do prices include duties and taxes?

Shipping and duty handling can vary by destination and product type. If DDP (Delivered Duties Paid) is offered for your destination, duties and import handling are included at checkout for eligible orders. If DDP is not available, duties and taxes may be collected by the carrier or local customs authority.

What is the warranty?

This wheelset includes a 2-year manufacturer warranty. If an issue occurs, Underdogs Cycling will guide you through the claims process and coordinate with the manufacturer where applicable.

How do I confirm compatibility before ordering?

Compatibility depends on axle standard, brake interface, and drivetrain/freehub type. If you’re unsure, send us your bike model/year and your drivetrain (Shimano vs SRAM) and we’ll help confirm fit.

Is the Overfast Ultralight Wheelset safe for real-world riding?

Yes. The rim structure is validated beyond standard requirements, including 100 J impact testing (UCI requirement is 40 J), plus fatigue testing and an optimized carbon layup for stiffness and durability.

What tyre size should I use with the 23 mm internal rim?

Overfast does not publish a specific maximum tyre size for this wheelset. Follow tyre manufacturer guidance for fitment and pressure, and do not exceed the stated wheelset pressure limit of 110 psi on 28c.

Are carbon spokes serviceable?

Yes. The carbon spoke system is designed for durability and long-term ownership, including serviceability and repairability.

Which depth should I choose: 37 mm or 50 mm?

Choose 37 mm if you want the lightest, most responsive all-round feel. Choose 50 mm if you want a more aerodynamic option while staying exceptionally light.

Is the hub interface Center Lock?

Yes. This wheelset uses Center Lock hubs.