The Polygon Helios A0 is built to perform at the sharpest end of road racing. Refined over three years with pro-rider input, it combines next-generation ACX carbon engineering, race-tuned stiffness, and world-class integration—all in a 15.87 lbs package ready to dominate on the climbs, in the break, or through the final sprint.
FEATURES
ACX PERFORMANCE CARBON FRAME
The Helios A0 frame employs optimized fiber orientation and controlled wall thickness to maximize stiffness-to-weight ratio. This engineering delivers UCI-approved race performance with a balanced ride quality that preserves comfort. Every tube shape and layup has been tuned for efficient power transfer without sacrificing compliance on long race days.
SRAM RED AXS + POWER METER
The 2×12 SRAM RED AXS wireless drivetrain delivers crisp, race-ready shifting with seamless integration and no cables to hold you back. Equipped with a power meter, it enables precise performance tracking, helping riders optimise training, measure every watt, and gain a competitive edge with the most advanced road groupset available.
ZIPP 303 SW CARBON WHEELSET
The Zipp 303 SW features a 40mm deep, wide carbon rim delivering improved aerodynamics and low rolling resistance. Integrated with the Zipp AXS Wheel Sensor, it offers real-time tire pressure monitoring and seamless AXS connectivity. Enhanced carbon layup increases impact resistance by 10%, paired with durable ZR1 hubs and stainless steel bearings for smooth, reliable performance.
REVISED FRONT-END FORK DESIGN
The updated fork features increased surface area, optimised rake, and smooth transitions for improved aero performance and front-end stiffness, all while weighing just 420g. Engineered to reduce drag and sharpen handling precision during high-speed descents and sprint finishes, it delivers a confident, race-ready front end without compromise.
ADAPTABLE COCKPIT
The cockpit features semi-integrated cable routing for a clean, aerodynamic look while maintaining easy access for servicing. A carbon handlebar with an ergonomic flat-top shape provides comfort and control. The frame is also compatible with both round and aero seatposts, giving riders flexibility when dialing in their ideal fit and performance setup. The result is a sleek cockpit engineered for uncompromised performance.
Geometry
| XXXS | XXS | XS | S | M | L | XL | |
| Rider’s Height | 4’8”–5’0” | 4’11”–5’3” | 5’2”–5’6” | 5’5”–5’9” | 5’7”–5’11” | 5’10”–6’2” | 6’1”–6’5” |
| Top Tube Effective | 502 | 513 | 529 | 540 | 556 | 570 | 598 |
| Reach | 370 | 375 | 385 | 390 | 400 | 405 | 420 |
| Seat Tube Length | 395 | 420 | 457 | 489 | 499 | 518 | 536 |
| Seat Tube Angle | 75 | 74.7 | 74.3 | 74 | 73.7 | 73.3 | 73 |
| Effective Seat Tube Angle | 75° | 75° | 74° | 74° | 74° | 73° | 73° |
| Head Tube Angle | 71 | 71.3 | 71.5 | 72.3 | 72.5 | 72.8 | 73 |
| Head Tube Length | 90 | 100 | 110 | 120 | 130 | 150 | 170 |
| BB Offset | 78 | 78 | 75.5 | 73 | 73 | 71.5 | 71.5 |
| Bottom Bracket Height | 78 | 78 | 76 | 73 | 73 | 72 | 72 |
| Chainstay Length | 410 | 410 | 410 | 410 | 410 | 410 | 410 |
| Wheelbase | 969 | 976 | 988 | 985 | 996 | 1005 | 1024 |
| Frame Stack | 493 | 503 | 511 | 523 | 533 | 551 | 571 |
| Standover | 662 | 685 | 720 | 752 | 761 | 780 | 799 |
| Crank Length | 165mm | 165mm | 165mm | 170mm | 170mm | 172.5mm | 175mm |
| Stem Length | 90mm | 100mm | 100mm | 110mm | 110mm | 120mm | 120mm |
| Handlebar Width | 400mm | 400mm | 400mm | 420mm | 420mm | 440mm | 440mm |
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