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Description

PERFORMANCE AERO
The Polygon Helios A7X is a UCI-approved carbon aero race bike weighing just 8.1kg, this machine is engineered for speed and performance. Whether you’re an aspiring racer chasing the podium or seeking an aerodynamic lightweight ride, the Helios A7X delivers the speed and agility you need to beat PRs and the competition.

LOOKS FAST, FEELS FASTER
The Helios A7X ACX carbon frame, weighing a mere 800g, is meticulously designed for aerodynamic efficiency, boasting a 31% reduction in drag over the previous generation. Wider clearance for 28c tyres enhances comfort without sacrificing speed, while reinforcements in the bottom bracket, chainstay, and thru-axles ensure that every watt of your effort translates into pure speed on the road.

A TRUSTED BRAND
Polygon boasts over 30 years of experience and is known for offering high-performance bikes at competitive prices. Polygon road bikes have led to numerous national titles and even a victory at the 2023 Tour De Taiwan. With a 5-year warranty, you can trust Polygon to deliver from the factory to the track.

INDUSTRY REVIEWS
Incredible value, well-mannered ride, quick yet balanced handling, Shimano 105 Di2 group, did I mention the incredible value?” - Escape Collective

SHIMANO 105 Di2 GROUPSET
Lightning-fast electronic gear changes, a wider 2x12 drivetrain with 11-34T cassette, and versatile 52/36T chainrings make conquering any terrain a breeze. Enjoy pro-level performance at an accessible price.

CARBON WHEELS
Suited to undulating terrain, the Entity WR5 50mm carbon wheels offer a fast yet comfortable riding experience and come wrapped in Schwalbe ONE 28mm TLE/race-ready tyres.

INTEGRATED
The fully integrated BLKTEC R8 cockpit strikes the perfect balance between simplicity and aero engineering. It features a removable cover, making maintenance a breeze.
Components
FRAMESET
SUSPENSION
DRIVETRAIN
BRAKES
WHEELS
CONTACT POINTS
WEIGHT
* We cannot guarantee which option will be included with your purchase.
Geometry
Size | XXS | XS | S | M | L | XL |
Height (cm) | 158-164cm | 163-168cm | 166-174cm | 172-180cm | 178-186cm | 184-192cm |
Crank Length | 170 | 170 | 170 | 170 | 172.5 | 172.5 |
Handlebar Width | 400 | 400 | 400 | 420 | 420 | 440 |
Stem Length | 90 | 90 | 90 | 100 | 100 | 110 |
Seat Tube Length (A) | 450 | 475 | 500 | 520 | 545 | 570 |
Seat Tube Angle (B) | 75° | 74.7° | 74.3° | 74° | 73.7° | 73.3° |
Effective Seat Tube Angle (C) | 75° | 74.7° | 74.3° | 74° | 73.7° | 73.3° |
Head Tube Length (D) | 100 | 115 | 130 | 145 | 160 | 175 |
Head Tube Angle (E) | 71.5° | 71.8° | 72° | 72.3° | 72.3° | 72.8° |
Effective Top Tube (F) | 505.31 | 517.31 | 530.42 | 543.04 | 555.14 | 569.25 |
BB Height (G) | 271 | 271 | 271 | 271 | 271 | 271 |
BB Offset (H) | 73 | 73 | 73 | 73 | 73 | 73 |
Chainstay Length (I) | 415 | 415 | 415 | 415 | 415 | 415 |
Wheelbase (J) | 968.42 | 975.82 | 983.9 | 991.1 | 1000.62 | 1005.8 |
Frame Reach (K) | 370 | 375 | 380 | 385 | 390 | 395 |
Frame Stack (L) | 505 | 520.21 | 535.2 | 550.4 | 564.7 | 580.8 |
Standover Height (M) | 716.04 | 739.4 | 763.21 | 780.8 | 802.52 | 824.28 |
*All lengths in mm
Assembly
As a guide, it'll take 10-40min depending on whether you're an experienced bike assembler or have little to no mechanical experience.
Side Note: Your cables will stretch during the initial bed-in period and must be adjusted by an experienced mechanic around 150km of riding.
Unboxing Your Bike
Bike Fit Setup
Tyre Pressure Setup
Unboxing Your Bike
Bike Fit Setup
Tyre Pressure Setup

Polygon Helios A7X - 105 Di2 Carbon Road Bike

Short Description
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Great Service
With Brad's help and multiple phone calls the right size bike was established including follow up emails. the personal attention was very much appreciated


Very Happy Customer
After searching for a second hand bike within limited budget for months, I gave in a went with a brand new option. This bike is such good value and the best option for people who need a decent road bike but are still fairly new to the sport.

High tech bike , on a descent price
Bike came on time , well secured. bike is awesone , love the paint job, carbon frame , fork , wheels , handle bar. I did two rides for 130 miles. Bike still strong . Electronic shifting work really well. Some of my co riders already interested . I will recommend .👍

This is the bike you are looking for
My first purchase of a bike online and it has been so easy and no stress. Fast shipping. Now the bike. I have put over 700km on it already and absolutely love it. Full carbon frame, Shimano 105 DI2 gears and the aero bars at the front. Clean looking bike and a great colour too. This bike stacks up to the same level of its equivalent of the major brands such as Trek and Giant. And at the price point, you actually have to pay a little more to get something like for like to the major brands.