Argon 18 E-119 Tri+ Red AXS Bike

Every second. Every watt. Every advantage. That is Argon 18’s stated design brief for the Argon 18 E-119 Tri+ Red AXS Bike, and the execution backs it up. Built by the Montreal-based brand around their Pro Level Layup carbon, the E-119 Tri+ is engineered as a complete race system: frame and rider, cockpit and storage, brakes and aerodynamics, all treated as one integrated structure rather than a sum of components. The result is a bike that earns its place among the fastest triathlon platforms available.

The aerodynamic breakthrough on the E-119 Tri+ is the integrated brake system. Argon 18 built the disc calipers directly into the frame — an industry first — eliminating the protruding caliper bodies that generate drag on conventional disc brake tri bikes. This system-wide integration extends to an aero-optimized cockpit, a deep bento box built into the front end, and a hidden toolkit accessible through the bottom bracket area. The combined result of these frame optimizations and system integrations is a claimed 10-watt advantage over the previous-generation E-119 — a meaningful figure when it compounds over a 112-mile bike leg.

The cockpit is the Argon 18 Oneness System — an integrated unit combining basebar and stem in a single structure with precise adjustability. The Oneness System delivers high stiffness, leading-edge aerodynamics, and travel-friendly assembly: the cockpit can be broken down and reassembled quickly without requiring a mechanic. Aerobar extensions are 51 Speedshop custom units. The Argon Fit System ensures that geometry stays consistent across all five sizes — the 78-degree seat tube angle, 72-degree head tube angle, and 413mm chainstays are constant from XS to XL. Stack range is adjustable from 573 to 663mm on an XS, with reach running 414 to 501mm, reflecting the Oneness System’s significant positional range within each frame size.

The SRAM Red AXS E1 drivetrain runs through every contact point — derailleur, crankset, calipers, and chain — with wireless shifting via SRAM blip satellite shifters mounted on the aerobars for position-specific actuation. The crankset includes an integrated power meter, providing a data-complete race setup out of the box. Chainrings are 50/37, running against a SRAM XG1290 10-33 cassette in 12-speed. The bottom bracket is a CeramicSpeed BB86 DUB Coated unit — ceramic bearings in a coated shell for lower friction and extended service life. Rotors are TRP TR140-25 at 140mm.

The wheels are Zipp 858 NSW front and rear — Zipp’s top-tier Needle Speed Windows deep-section carbon wheelset, designed specifically for triathlon and time trial use. The 858 NSW deploys Zipp’s ABLC Sawtooth dimple pattern and Nanocoat treatment for crosswind stability at depth. The saddle is ISM PN3.1, the benchmark noseless triathlon saddle for athletes using aggressive forward positioning. The included Notio Aero Sensor mounts to the cockpit to measure the rider’s CdA (drag coefficient) in real time during training, allowing systematic position optimization before race day. Tires are Vittoria Corsa N.EXT TLR 700x28 — tubeless-ready, top-tier race specification.

Specs at a Glance

• Frame: Carbon, Pro Level Layup
• Fork: Carbon, Bayonet Design
• Headset: Integrated
• Seatpost: E-119 Tri+ Carbon
• Cockpit: Argon 18 Oneness System Integrated Bar/Stem + 51 Speedshop Extensions
• Drivetrain: SRAM Red AXS E1 12-speed (full wireless)
• Crankset: SRAM Red AXS E1 with Power Meter, 50/37
• Cassette: SRAM XG1290 10-33, 12-speed
• Bottom Bracket: CeramicSpeed BB86 DUB Coated
• Brakes: Argon 18 Integrated Brake System (frame-integrated disc calipers)
• Rotors: TRP TR140-25 140mm
• Shifters: SRAM Wireless Blips
• Wheels: Zipp 858 NSW (front & rear)
• Tires: Vittoria Corsa N.EXT TLR 700x28
• Saddle: ISM PN3.1
• Seat Tube Angle: 78° (constant across all sizes)
• Accessories: Notio Aero Sensor, Wahoo Speed Sensor, Integrated Toolkit
• Pedals: Not included
• Sizes: XS, S, M, L, XL
• Colors: Vivid Blue, Constellation Black

Design Benefits

1. Industry-first integrated disc caliper system — Argon 18 built the brake calipers into the frame structure itself, eliminating the protrusion drag created by external disc calipers on conventional tri bikes. Combined with aero-optimized tube shapes, bento box integration, and a hidden bottom bracket toolkit, these system-wide changes produce a claimed 10-watt advantage over the previous-generation E-119.
2. Oneness System integrated cockpit — The Oneness System is a single rigid unit combining basebar and stem, with precision adjustability for triathlon fit and travel-friendly breakdown for race travel. Satellite blip shifters allow gear changes from the aero position without leaving the tuck.
3. SRAM Red AXS E1 with power meter — SRAM’s flagship wireless groupset at every contact point, with an integrated power meter in the crankset. The 50/37 front with 10-33 rear provides race-functional gearing with close steps. CeramicSpeed bottom bracket bearings reduce friction at the most loaded component in the drivetrain.
4. Zipp 858 NSW wheels, front and rear — Zipp’s top triathlon wheelset featuring their ABLC Sawtooth dimple pattern and Nanocoat treatment for crosswind management at extreme rim depth. Specified front and rear — not a mismatched pairing — delivering consistent aerodynamic behavior from both ends of the bike.
5. 78° seat tube angle across all sizes — The Argon Fit System maintains a consistent 78-degree STA regardless of frame size, ensuring the aggressive triathlon position this bike was designed around is accessible to every athlete. The Oneness System’s 90mm of stack and reach adjustment handles individual fit variation within each size.
6. Notio Aero Sensor included — The Notio device measures the rider’s CdA (aerodynamic drag coefficient) in real time during training, enabling data-driven position optimization before race day. For athletes at this level of the sport, measurable drag reduction during training translates directly to race-day time savings.

Final Take

The Argon 18 E-119 Tri+ Red AXS is a complete, uncompromised triathlon race build. Zipp 858 NSW wheels, SRAM Red AXS E1 with integrated power meter, CeramicSpeed BB, Notio aero sensor, ISM saddle, and Argon 18’s proprietary integrated brake and cockpit systems — every decision on this bike reflects a specific performance intent. For the athlete who races Ironman distances seriously and wants the fastest complete build in the category, the E-119 Tri+ Red AXS is where that search ends.