Specialized Roval 321 Disc Carbon Rear Wheel 700c CeramicSpeed

Specialized Roval 321 Disc Carbon Rear Wheel

700c | Disc Brake | CeramicSpeed Bearings | Tubeless Ready | Team S-Racing Carbon/Gloss White

The Specialized Roval 321 Disc Rear Wheel is engineered for athletes chasing every possible aerodynamic advantage. Designed through extensive Computational Fluid Dynamics (CFD) analysis and Specialized's renowned Win Tunnel testing, the 321 Disc delivers world-class aerodynamic efficiency, exceptionally low weight, and race-winning performance for triathlon and time trial competition.

Constructed using an advanced 1K carbon fiber layup, paired with CeramicSpeed bearings and DT Swiss 240 Star Ratchet internals, the Roval 321 is built to maximize speed while maintaining optimal ride quality and predictable handling throughout the race.

Aerodynamics Above Everything

The Roval 321 Disc was designed with one goal—maximize aerodynamic efficiency.

Using advanced CFD modeling and extensive Win Tunnel testing, Specialized created a unique disc profile that optimizes airflow with modern road tires.

Benefits include:

• Reduced aerodynamic drag
• Improved efficiency at race speeds
• Faster overall bike splits
• Stable handling in varying wind conditions

Built specifically for triathlon and time trial racing where every second counts.

Advanced 1K Carbon Construction

Unlike traditional disc wheels, the 321 Disc utilizes an advanced 1K carbon fiber construction.

Advantages include:

• Extremely lightweight design
• Superior ride quality
• Excellent vibration damping
• Precise handling under power

The premium 1K carbon layup requires expert craftsmanship while delivering one of the lightest full-carbon disc wheels available.

Optimized Ride Stiffness

Rather than maximizing stiffness alone, Specialized engineered the 321 Disc to achieve the ideal balance between power transfer and ride quality.

Benefits include:

• Efficient power delivery
• Reduced brake rub under load
• Improved frame compliance
• More consistent handling during hard efforts

Premium CeramicSpeed Performance

At the center of the wheel is a premium hub featuring CeramicSpeed bearings and proven DT Swiss 240 Star Ratchet internals.

Features include:

• CeramicSpeed ceramic bearings
• DT Swiss 240 Star Ratchet mechanism
• 142 x 12mm thru-axle compatibility
• Convertible freehub and end caps

Designed for exceptionally low rolling resistance and long-term reliability.

Tubeless Ready

The Roval 321 Disc is Tubeless Ready for lower rolling resistance, improved comfort, and enhanced puncture protection.

Recommended tire width:

• 22–38mm

Maximum tire pressure:

• 130 PSI

Hand-Built Precision

Every Roval 321 Disc wheel is hand-built from the initial carbon layup through final assembly, ensuring outstanding quality and consistency.

Specifications

• Brand: Specialized Roval
• Model: 321 Disc Rear Wheel
• MPN: 30021-8932
• Position: Rear
• Wheel Size: 700c
• Color: Team S-Racing Carbon / Gloss White
• Wheel Type: Disc Brake
• Rim Material: Carbon
• Rim Construction: Full Carbon Disc
• Tubeless Ready: Yes (2Bliss Ready)
• External Rim Width: 27.3mm
• Internal Rim Width: 19mm
• Hub: Roval Disc Hub
• Hub Internals: DT Swiss 240 Star Ratchet
• Bearing Type: CeramicSpeed Ceramic Bearings
• Axle Compatibility: 142 x 12mm Thru Axle
• Freehub: Convertible
• Recommended Tire Width: 22–38mm
• Maximum Tire Pressure: 130 PSI
• System Weight Limit: 240 lbs (109 kg)
• Wheelset Weight: Approx. 1,015g (manufacturer specification)

Included

• Specialized Roval 321 Disc Rear Wheel
• Roval Padded Wheel Bag
• Roval Tubeless Valve
• Roval Tubeless Plugs
• Roval Valve Pocket Covers

Key Features

✔ Genuine Specialized Roval 321 Disc rear wheel

✔ Advanced 1K carbon disc construction

✔ Aerodynamically optimized using CFD and Win Tunnel testing

✔ CeramicSpeed ceramic bearings

✔ DT Swiss 240 Star Ratchet hub internals

✔ Tubeless Ready (2Bliss Ready)

✔ Hand-built for maximum precision

✔ Lightweight race-ready design

✔ Designed for triathlon and time trial racing

Ideal For

✔ Triathlon

✔ Time Trial (TT)

✔ Ironman racing

✔ Aero road bikes

✔ Competitive cyclists

✔ Riders seeking maximum aerodynamic performance

Why Choose the Specialized Roval 321 Disc?

• Developed through Specialized's advanced CFD modeling and Win Tunnel testing
• Premium 1K carbon construction delivers exceptional strength with remarkably low weight
• CeramicSpeed bearings reduce rolling resistance for maximum race-day efficiency
• DT Swiss 240 Star Ratchet internals provide proven reliability and easy serviceability
• Optimized stiffness improves power transfer while minimizing brake rub
• Tubeless Ready design supports modern high-performance tire setups
• Genuine Specialized Roval engineering trusted by elite triathletes and time trial specialists

The Specialized Roval 321 Disc Carbon Rear Wheel represents the pinnacle of aerodynamic wheel technology. Combining cutting-edge 1K carbon construction, CeramicSpeed bearings, DT Swiss 240 internals, and a wind tunnel-developed disc profile, it delivers uncompromising speed and efficiency for athletes looking to gain every possible advantage on race day.