Roval 321 Rear Disc Brake
The Roval 321 Rear Disc Brake by Specialized is born for one goal: to make you fly in time trials and triathlons. When half the race time is spent on the bike, every second becomes precious, and the choice of the rear wheel can make the difference between a good result and the performance of a lifetime. This disc wheel is not just faster than a traditional spoked wheel: it revolutionizes the concept, combining extreme aerodynamics, low weight, and unparalleled smoothness. Made with a single layer of premium 1k carbon fiber on both sides, the 321 undergoes a complex, high-level artisanal process. The result is an extraordinarily lightweight, responsive wheel capable of offering a smooth ride even over long distances, reducing fatigue when the clock is ticking and the legs start burning. The stiffness optimization was designed to work harmoniously with the frame, avoiding annoying rubs and converting every watt into pure speed. Hours of CFD and wind tunnel development gave life to an aerodynamic profile specific for clincher and tubeless use, designed to maximize airflow both on the side opposite the drivetrain and on the derailleur side. Completing the package are CeramicSpeed bearings and a hub with a DT Swiss 240 mechanism, for exceptional smoothness and impeccable power transmission. The Roval 321 Disc is the choice of athletes aiming for the maximum: a highly advanced disc wheel, ready to turn every time trial and triathlon into your perfect race.
Main features of the Roval 321 Rear Disc Brake:
- Rear disc wheel in carbon fiber specifically for time trials and triathlon, designed for maximum speed
- Construction with a single layer of 1k carbon fiber on both sides for reduced weight and smooth response
- Aerodynamic profile developed with CFD and wind tunnel, optimized for real bike use
- Stiffness balance designed to work synergistically with the frame, avoiding rubs and power loss
- Tubeless ready clincher rim, ideal for those seeking smoothness and puncture reduction
- Rim width: 27.3 mm external and 19 mm internal, optimized for modern tires
- Tire compatibility from 22 to 38 mm, with a maximum pressure of 130 PSI
- Rear hub Roval Disc with DT Swiss 240 Star Ratchet mechanism for quick and reliable engagement
- Compatible with 142x12 mm thru axle (convertible freehub and adaptable hooks)
- CeramicSpeed bearings for ultra-high smoothness to minimize friction
- Maximum system load (bike + rider + equipment) of 109 kg
- Approximate weight of only 1015 g, among the lightest disc wheels on the market
- Hand assembled for maximum quality control and construction precision
- High-performance carbon structure for stiffness, responsiveness, and durability over time
- Supplied with Roval tubeless valve, SwissStop Black Prince brake pads, and rim tape at the valve area
- Designed for high-level athletes seeking the best balance between aerodynamics, weight, and smoothness
Roval 321 Rear Disc Brake
The Roval 321 Rear Disc Brake by Specialized is born for one goal: to make you fly in time trials and triathlons. When half the race time is spent on the bike, every second becomes precious, and the choice of the rear wheel can make the difference between a good result and the performance of a lifetime. This disc wheel is not just faster than a traditional spoked wheel: it revolutionizes the concept, combining extreme aerodynamics, low weight, and unparalleled smoothness. Made with a single layer of premium 1k carbon fiber on both sides, the 321 undergoes a complex, high-level artisanal process. The result is an extraordinarily lightweight, responsive wheel capable of offering a smooth ride even over long distances, reducing fatigue when the clock is ticking and the legs start burning. The stiffness optimization was designed to work harmoniously with the frame, avoiding annoying rubs and converting every watt into pure speed. Hours of CFD and wind tunnel development gave life to an aerodynamic profile specific for clincher and tubeless use, designed to maximize airflow both on the side opposite the drivetrain and on the derailleur side. Completing the package are CeramicSpeed bearings and a hub with a DT Swiss 240 mechanism, for exceptional smoothness and impeccable power transmission. The Roval 321 Disc is the choice of athletes aiming for the maximum: a highly advanced disc wheel, ready to turn every time trial and triathlon into your perfect race.
Main features of the Roval 321 Rear Disc Brake:
- Rear disc wheel in carbon fiber specifically for time trials and triathlon, designed for maximum speed
- Construction with a single layer of 1k carbon fiber on both sides for reduced weight and smooth response
- Aerodynamic profile developed with CFD and wind tunnel, optimized for real bike use
- Stiffness balance designed to work synergistically with the frame, avoiding rubs and power loss
- Tubeless ready clincher rim, ideal for those seeking smoothness and puncture reduction
- Rim width: 27.3 mm external and 19 mm internal, optimized for modern tires
- Tire compatibility from 22 to 38 mm, with a maximum pressure of 130 PSI
- Rear hub Roval Disc with DT Swiss 240 Star Ratchet mechanism for quick and reliable engagement
- Compatible with 142x12 mm thru axle (convertible freehub and adaptable hooks)
- CeramicSpeed bearings for ultra-high smoothness to minimize friction
- Maximum system load (bike + rider + equipment) of 109 kg
- Approximate weight of only 1015 g, among the lightest disc wheels on the market
- Hand assembled for maximum quality control and construction precision
- High-performance carbon structure for stiffness, responsiveness, and durability over time
- Supplied with Roval tubeless valve, SwissStop Black Prince brake pads, and rim tape at the valve area
- Designed for high-level athletes seeking the best balance between aerodynamics, weight, and smoothness
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