Polygon Helios A7 Di2
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If you are ordering - Bikes - online, please call us to discuss delivery instructions before completing your purchase. Please be aware that bikes cannot be shipped directly to customers in their original packaging; however, we can arrange for them to be on-shipped once prepared. Additionally, please note that an assembly fee applies.
In The Relentless Pursuit Of Speed
Introducing the all-new Helios A—the 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 isn’t just a bike—it’s your competitive edge.
It’s light
Weight is a decisive criteria when it comes to justifying the quality of a top-of-the-range road bike. Saving a few grams on a frame while retaining its stiffness and quality presents a real challenge. Our engineers have taken up this challenge by redesigning the ACX carbon construction of our frame and fork to achieve a fantastic result, saving almost 300 grams on its frame.
Superior Power Transfer
We’ve reinforced the bottom bracket 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 by us and proudly branded under our 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.
Specifications
| Fork | ACX Performance UCI Approved |
| Shifter | Shimano 105 Di2 ST-R7170, 2x12 Speed |
| Rear Derailleur | Shimano 105 Di2 RD-R7150 |
| Brake Lever | Shimano 105 ST-R7170 |
| Frameset | ACX PERFORMANCE UCI APPROVED |
| 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) |
| 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 |
| Crank | SHIMANO 105 FC-R7100 52/36T |
| Cassette | SHIMANO 105 CS-R7101-12 12-SPEED 11-34T |
| Handlestem | CARBON, EXT - 90mm (XXXS) / 100mm (XXS, XS) / 110mm (S, M) / 120mm (L, XL), BB - 31.8mm, R/D - -7.5degree |
| Brake Caliper | SHIMANO 105 HYDRAULIC DISC |
| Rotor | SHIMANO SM-RT70 F-160mm / R-140mm CENTER LOCK |
We use a premium delivery service to deliver all of our bikes to ensure they arrive in the best possible condition. Bicycles from a different warehouse so may arrive separately to any other items ordered. A signature is required to confirm proof of delivery.
All products are sourced from official importers and covered by manufacturers warranty. If you do need to send items back to us please make sure that you retain proof of postage in the event that it is needed.
Your product is covered by a 12 month Warranty or more if you opted for the extended warranty. Make sure you register your product.