Product Features

• Lightweight high-modulus carbon gravel frame engineered for speed and endurance
• Shimano GRX 825 Di2 electronic shifting for ultra-fast, precise gear changes
• Fully integrated internal cable routing for aerodynamic efficiency and clean aesthetics
• Carbon gravel fork for vibration damping and responsive handling
• Wide tire clearance for modern gravel and mixed-terrain setups (up to approx. 700x45c)
• Hydraulic disc brakes for consistent stopping power in all conditions
• Race-inspired gravel geometry balancing stability and aggressive performance
• Thru-axle system for maximum stiffness and control
• Bikepacking-ready mounts for adventure versatility

Product Description

The ARC8 EERO 2025 Shimano GRX 825 Di2 is a premium performance gravel bike designed for riders who demand cutting-edge technology, lightweight carbon construction, and precision electronic shifting. Built around ARC8’s advanced carbon engineering, the EERO delivers exceptional speed and control across gravel racing, endurance riding, and fast adventure exploration.

Equipped with Shimano GRX 825 Di2 electronic drivetrain, this bike ensures instantaneous and effortless shifting even under heavy load or rough terrain. The aerodynamic carbon frame and fork combination enhances efficiency while maintaining compliance for long-distance comfort.

From competitive gravel racing to ultra-endurance bikepacking, the ARC8 EERO 2025 is built to perform at the highest level with modern integration and race-ready geometry.

Specifications

• Frame: High-modulus carbon gravel frame, fully integrated routing
• Fork: Carbon gravel fork (aero optimized)
• Drivetrain: Shimano GRX 825 Di2 electronic (2x or 1x setup depending on build)
• Brakes: Shimano GRX hydraulic disc brakes
• Tire Clearance: Up to approx. 700x45c
• Wheel Size: 700c gravel wheelset compatible
• Axles: Thru-axle front and rear (12x100 / 12x142)
• Bottom Bracket: T47 threaded standard (typical for modern carbon gravel frames)
• Seatpost: 27.2mm round seatpost standard
• Cable Routing: Fully internal (electronic Di2 integration ready)
• Mounts: Bottle cage mounts + minimal bikepacking compatibility
• Intended Use: Gravel racing, endurance cycling, fast bikepacking, performance adventure riding

What’s Included

• ARC8 EERO 2025 carbon frameset or complete bike (depending on listing)
• Shimano GRX 825 Di2 drivetrain system (pre-installed on complete build)
• Shimano hydraulic disc brake system
• Carbon gravel fork
• Thru-axles (front and rear)
• Seatpost clamp and small parts kit
• Handlebar, stem, saddle, wheels (complete build only)
• Electronic charging system (Di2 charger)
• User manual & warranty documentation