The all-new Polygon Helios A8 Di2 road bike represents the next evolution in high-performance cycling.
Built on the foundation of the previous Helios A8, this model integrates elite racing heritage with cutting-edge innovation, offering riders an uncompromising combination of speed, control, and efficiency.
Engineered for speed and control, this bike is crafted for competitive cyclists and passionate enthusiasts worldwide.
With its advanced carbon frame and Shimano’s Ultegra R8170 Di2 semi-wireless drivetrain, the Helios A8 Di2 delivers a ride that’s as dynamic as it is precise, making it a top choice for riders chasing podiums or personal bests.
Still curious about this ultra-performance road bike? Scroll to find out what makes this road bike perform like a rocket!
The Powerhouse: Shimano Ultegra R8170 Di2 Electronic Drivetrain
The heart of the Helios A8 Di2 road bike is Shimano’s Ultegra R8170 Di2 groupset, a semi-wireless system that sets a new standard for shifting and braking performance.
Excellent for navigating a steep climb with its Hyperglide+ system that ensures smooth & instant gear changes with minimal effort. The electronic shifting is customizable via Shimano’s E-Tube app, allowing riders to fine-tune preferences for a personalized experience.
This groupset doesn’t stop at shifting. The hydraulic disc brakes provide exceptional stopping power, with 160 mm front and 140 mm rear rotors offering precise modulation in all conditions—wet or dry.
The ergonomic carbon levers enhance control, while the semi-wireless cockpit reduces cable clutter, improving both aesthetics and aerodynamics.
With a battery life of up to 1,000 km per charge, the Helios A8 Di2 is built for long-distance reliability, perfect for extended training sessions or competitive races.
Helios A8 Di2: Elite Engineering & Key Specifications
The Helios A8 Di2 represents a pinnacle of top-tier engineering combined with Shimano’s cutting-edge electronic shifting, delivering truly exceptional performance. Here’s an in-depth look at what makes this carbon road bike stand out:
| Component | Specification | Key Benefit |
| Frame & Fork | ACX Performance Carbon Frame (~880 g), UCI-approved ACX Carbon Tapered Fork (~420 g) | Lightweight, aerodynamic, and stiff for race-ready handling |
| Bottle Mounts | Dual downtube cage options: high/low for varied bottle sizes | Adjustable setup for hydration and aerodynamics |
| Seatpost | Aero carbon + optional 27.2 mm round post | Customizable comfort and rigidity |
| Tire Clearance | Up to 34mm (700x28c stock) | Versatile enough for rough roads without losing speed |
| Drivetrain | Shimano Ultegra R8170 Di2, 2×12 semi-wireless, KMC X12 EPT chain | Seriously-fast, reliable shifts under any load |
| Bottom Bracket | T47 threaded system, reinforced triangle | Durable, stiff, and efficient power transfer |
| Cockpit | LINC carbon handlebar/stem (400–440mm depending on size) | Clean aero profile with stable crosswind handling |
| Wheels & Tires | LINC Beta 45mm carbon wheels, tubeless-ready with 28c tires | Fast-rolling, lightweight, and puncture-resistant setup |
| Brakes | Shimano Ultegra R8170 hydraulic disc (160mm/140mm) | Confident stopping power in all conditions |
A Road Bike Engineered for Real-World Speed
From the start line to the finish, the Helios A8 Di2 is made for riders who push limits. The frame’s high-modulus carbon construction maximizes power transfer without adding bulk.
Every pedal stroke turns into efficient acceleration, whether you’re sprinting to break away or grinding up a steep incline.
The Ultegra Di2’s wireless operation and smooth shifting let you stay focused on the road ahead, while the braking system allows you to descend with control and confidence.
Hyperglide+ technology ensures chain retention, and shifting under pressure remains incredibly smooth, precisely what you need when the peloton ramps up to threshold speed.
With 45mm deep-section carbon wheels and high-grip 28c tires, this bike maintains stability through corners and delivers aerodynamic gains on straightaways.
All of this is packaged in a semi-wireless setup that reduces drag, simplifies maintenance, and enhances the bike’s overall profile. Combined with a long-range battery life, the Helios A8 Di2 road bike is a race machine that’s ready for weekly training, competitive racing, or endurance challenges.
Designed for Riders Who Won’t Settle
The Polygon Helios A8 Di2 offers premium technology and race-ready features typically seen on bikes twice its price ($4,699.00). It’s perfect for competitive racers, club riders, or enthusiasts upgrading from mechanical drivetrains.
Its UCI-approved carbon frame, paired with Shimano’s top-tier Ultegra Di2 groupset and lightweight carbon wheels, rivals high-end models from leading brands.
This bike is ideal for:
- Competitive cyclists seeking a race-ready, UCI-certified machine.
- Enthusiasts upgrading from mechanical shifting to the precision of electronic Di2.
- Riders tackling diverse terrains, from rolling hills to urban circuits.
- Anyone aiming to elevate their performance with a bike that matches their ambition.
Helios A8 Di2 Sets a New Standard
The Polygon Helios A8 Di2 road bike is a masterpiece of engineering, combining lightweight construction, advanced technology, and rider-focused design.
Its Shimano Ultegra R8170 Di2 groupset, aerodynamic carbon frame, and versatile wheelset make it a standout choice for cyclists worldwide.
The Helios A8 Di2 road bike delivers a riding experience that seamlessly blends speed, control, and innovation – a rare synergy that truly sets it apart in a crowded performance road segment.
For racers and serious enthusiasts who believe their equipment should be as relentless as their ambition, this is the machine that answers the call.
Read also
Check out our latest update in our YouTube channel
