POLYGON HELIOS A7 Di2 (Black)
Shimano 105 Di2 R7170, 2x12 SPEED
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In The Relentless Pursuit Of Speed
Designed To Cut Through Air Better
Introducing the all-new Helios Athe pinnacle of aerodynamic engineering and racing performance. Developed over three years of relentless testing and perfected with the elite UCI Continental Team, TSG, the Helios A is built to dominate any race condition.Refined to be 5.2 seconds faster than its predecessor and lighter than ever, the Helios A is meticulously optimized for speed, agility, and control. Whether battling headwinds or slicing through tight corners, its cutting-edge aerodynamics and balanced stiffness deliver an unmatched ride.This isnt just a bikeits your competitive edge.
Features
It’s light - Weight is a key factor in proving a high-end road bike’s quality. Engineers tackled the challenge of trimming grams without sacrificing stiffness—redesigning the ACX carbon frame to shed nearly 150 grams while maintaining top performance
Superior Power Transfer - The bottom bracket is reinforced for instant power transfer and adopted a T47 threaded system for added stiffness, smooth pedaling, and zero creaks—while up front, a shortened, reinforced head tube sharpens cornering for a decisive edge in every sprint.
From racing admiration to engineering the ultimate aerodynamic machine - The downtube, as the bike’s aerodynamic core, now features dual bottle cage mounting positions—low for large bottles, high for smaller ones—to reduce drag across setups. Paired with a newly redesigned, sleeker fork, the Helios A now cuts through air more efficiently than ever.
This is performance, perfected - With the new Helios A, Polygon redefines adaptability in road biking. The frame supports both an aero seat post (included) and a 27.2mm round option for added comfort—giving riders full control, whether tackling fast sprints or rough courses. It also fits tires from 28c to 34c, making it ultra-versatile for varying road conditions, and comes equipped with a 45mm carbon rim for balanced performance across the series.
It’s innovative - The complete series features a new semi-integrated carbon cockpit—handlebar, stem, and wheels—designed and proudly branded under new component line, LINC. Built to balance performance and comfort, LINC wheels make the bike lighter, faster, and more stable in crosswinds, while maximizing speed on flats. Ideal for modern cyclists who value both performance and elegance.
Specification
| Frameset | ACX PERFORMANCE UCI APPROVED |
| Fork | ACX PERFORMANCE UCI APPROVED |
| Shifter | SHIMANO 105 Di2 ST-R7170, 2x12 SPEED |
| Crank | SHIMANO 105 FC-R7100 52/36T |
| Cassette | SHIMANO 105 CS-R7101-12 12-SPEED 11-34T |
| Rear Derailleur | SHIMANO 105 Di2 RD-R7150 |
| BB | TOKEN T47 85.5 FOR 24mm SPINDLE |
| Chain | KMC X12 EPT 12-SPEED |
| Saddle | LINC FLUX2, CR-MO ø 7mm |
| Seatpost | CARBON AERO, DxL: AERO 35 x 351mm |
| Handlebar | LINC CARBON, W: 400mm (XXXS, XXS, XS) / 420mm (S, M) / 440mm (L, XL), BB: 31.8mm, R/D: -134.2 mm (XXXS, XXS, XS) / -138.2mm (S, M, L, XL), B/R: 92.5mm (XXXS, XXS, XS) / 89.7mm (S, M, L, XL) |
| Handlestem | CARBON, EXT: 90mm (XXXS) / 100mm (XXS, XS) / 110mm (S, M) / 120mm (L, XL), BB: 31.8mm, R/D: -7.5degree |
| Headset | INTEGRATED (IS) SEALED BEARING FOR OS HEAD TUBE, IS 52/28.6 | IS 52/40 |
| Wheel Set | LINC BETA CARBON DISC (45mm) W/ TUBELESS TAPE INSTALLED |
| Tire | PIRELLI PZERO ROAD TLR 700x28C |
| Rim | F: CARBON 622-22 20H FOR TYRE 622-28/62 DISC TUBELESS READY / R: CARBON 622-22 24H FOR TYRE 622-28/62 DISC TUBELESS READY |
| Hub | F: ALLOY THRU AXLE 12x100mm 20H SEALED BEARINGS CENTER LOCK / R: ALLOY THRU AXLE 12x142mm 24H SEALED BEARINGS CENTER LOCK |
| Spokes | F: STAINLESS DOUBLE BUTTED NDS:278mm DS:280mm / R: STAINLESS DOUBLE BUTTED NDS:272mm DS:274mm |
| Brake Lever | SHIMANO 105 ST-R7170 |
| Brake Caliper | SHIMANO 105 HYDRAULIC DISC |
| Rotor | SHIMANO SM-RT70 F:160mm / R:140mm CENTER LOCK |