Argon 18 Nitrogen (Ultegra Di2)

Wind-Tunnel Speed. Real-World Precision.

The engineering hallmark of the Argon 18 Nitrogen Ultegra Di2 is its aerodynamically optimized chassis paired with the ATTEN CHB-01 integrated aero cockpit. Designed around the reality that aero gains matter most at the leading edge of the bike, every surface. From the wide-stance fork blades to the hidden routing. Sculpted to reduce drag. Paired with Shimano’s ultra-fast 12Speed Ultegra Di2 wireless electronic group and deep-section carbon wheels, the Nitrogen holds top-end speed with effortless stability.

Why the Argon 18 Nitrogen Belongs in Your Race Arsenal:

• Aerodynamic Frame Optimization: Precision carbon layup and tube profiles significantly reduce wattage expenditure at race pace while maintaining crisp bottom bracket stiffness for explosive sprinting.

• Shimano Ultegra Di2 12Speed Electronic Drivetrain: Delivers lightning-fast, highly reliable wireless shifting with auto-trimming front derailleurs and powerful flat-mount hydraulic disc braking.

• ATTEN CHB-01 Aero Cockpit: Integrates hydraulic hoses internally while featuring rider-focused aerodynamics, ergonomic drop profiles, and an integrated computer mount.

• Scope R6.A Carbon Wheelset: Features a deep 65mm aerodynamic profile engineered specifically for wind-slicing speed, high-velocity stability, and an ultra-responsive ride feel.

• Vittoria Corsa N.EXT TLR 30c Tires: High-grip, supple tubeless-ready rubber that lowers rolling resistance and increases cornering confidence over fast road courses.

• Enduro 440C Stainless Steel Headset Bearings: Fully sealed, corrosion-resistant headset bearings packed with waterproof grease for zero-maintenance steering precision.

Technical Specifications:

• Frame: Argon 18 Nitrogen Aero Carbon Chassis

• Fork: Argon 18 Full Carbon Aero Monocoque (12x100mm Thru-Axle)

• Drivetrain: Shimano Ultegra Di2 R8150 / R8170 12Speed Electronic

• Wheelset: Scope R6.A Carbon (65mm Rim Depth)

• Tires: Vittoria Corsa N.EXT TLR 700x30c

• Handlebar/Stem: ATTEN CHB-01 Integrated Aero Carbon Cockpit

• Brake Rotors: Shimano Ultegra RT-CL800 (160mm Front / 140mm Rear)

• Max Tire Clearance: 700x32c

The Alegro Perspective: Aero bikes used to come with serious compromises. They were harsh to ride, heavy on climbs, and a nightmare to service. Argon 18 completely solved that with the new Nitrogen. The 65mm Scope wheels paired with 30c tubeless tires make this bike feel like an absolute missile on flat-out road sectors, yet it remains smooth enough for four-hour training rides. It’s light, razor-sharp on descents, and one of the best-looking race builds on the market today.

Unmatched Aero Velocity. Pro-Level Electronic Shifting. Rule the Road with Argon 18.