Isaac Meson Ultegra Di2 road bike Ruby Red

Description

Isaac Meson Ultegra Di2 Road Bike Ruby Red is a race-focused road (aero) bike for road cycling, built on a carbon frame with fully integrated cable routing. It sits in the “competition” performance class and targets riders looking for a blend of aerodynamics, low weight, and precise handling at high speed and in race conditions. The 2026 model year uses Shimano Ultegra Di2 2x12 electronic shifting and disc brakes, placing its spec in the upper mid-range to high-end road bike category.

Frame and geometry

At its core is an Advanced Carbon Tech Triad 40 carbon composite frame, paired with a matching-spec carbon fork—consistent with a design focused on stiffness and efficient power transfer. The Meson is conceived as an aero road bike with an emphasis on integrated cable routing (Integrated Cable Routing System) and a clean cockpit within the Isaac Full Integrated System (IFS). The head tube uses a tapered steerer (1-1/8"–1.5") and a Token A-Box headset; both frame and fork are built for 12x100 mm front and 12x142 mm rear thru-axles. Maximum tire clearance is 32 mm, expanding usage from race-oriented 28 mm tires to more comfortable 30–32 mm setups; the listed size in the materials is S.

Components

The drivetrain is Shimano Ultegra Di2 2x12 with Shimano Ultegra FC-R8100 cranks (52–36T chainrings), a Shimano Ultegra FD-R8150 front derailleur, and a Shimano Ultegra RD-R8150 Di2 rear derailleur. The gear range is completed by a Shimano CS-R8101 11–30T cassette, with a Shimano CN-M8100 chain; the Token Zenith Premium Inboard bottom bracket uses the T47 standard (86.5 mm width), which is advantageous for both serviceability and bottom-bracket stiffness. Braking is handled by Shimano Ultegra BR-R8170 hydraulic disc brakes with Shimano Ultegra ST-R8170 levers and Shimano RT-CL800 Center Lock rotors (160 mm front / 140 mm rear). The DT Swiss ARC1600 Spline DB wheelset is tubeless-ready and uses rims with a 55 mm depth and 22 mm internal width; tires are Goodyear Eagle 700x30C. The cockpit is a carbon Isaac Airflow II Carbon (width 380 mm, reach 53 mm, drop 121 mm, flare 4) with an integrated 90 mm carbon stem (drop -5.5) and Isaac Momentum bar tape; a Surface Powerbox 244x148 mm saddle is paired with a carbon seatpost with 0 mm offset.

Ride characteristics

The combination of an aero frame, integrated cockpit, and tall 55 mm DT Swiss rims steers the bike’s behavior toward maintaining speed on the flats and in windy conditions, where the clean cable integration also plays a role. The Advanced Carbon Tech Triad 40 carbon frame and T47 bottom bracket are typically chosen with an emphasis on bottom-end stiffness for acceleration and sprinting, while 700x30C tires and up to 32 mm clearance allow you to increase comfort and traction depending on chosen pressure and tubeless setup. Ultegra hydraulic disc brakes with 160/140 mm rotors add consistent braking performance for long descents and repeated braking. A weight starting at 7.7 kg (per the manufacturer’s specification) suggests an aero platform without a significant compromise toward heavier builds.

Who it’s for

Isaac Meson Ultegra Di2 is intended for experienced road riders and racers who want an aero race bike with electronic shifting, UCI approval, and modern disc brakes. Typical use includes racing, fast training sessions, and performance road riding, including routes with good or rougher asphalt thanks to the option of tires up to 32 mm. Within the competition, it’s an alternative to mainstream aero road bikes with an integrated cockpit and Shimano Ultegra Di2 groupset, where details like a 55 mm rim depth and tubeless compatibility make the difference.

Key specifications

• Frame: Advanced Carbon Tech Triad 40 (carbon composite), integrated cable routing
• Fork: Advanced Carbon Tech Triad 40, tapered steerer 1-1/8"–1.5"
• Shifting/drivetrain: Shimano Ultegra Di2 2x12, cassette 11–30T, chainrings 52–36T
• Brakes: Shimano Ultegra BR-R8170 hydraulic discs, Shimano RT-CL800 rotors 160/140 mm (Center Lock)
• Wheels: DT Swiss ARC1600 Spline DB, 55 mm rim, tubeless ready
• Tires: Goodyear Eagle 700x30C, max frame/fork clearance 32 mm
• Weight: from 7.7 kg
• Cockpit: Isaac Airflow II Carbon + integrated carbon stem 90 mm, Token A-Box headset

EAN: 8718223024230