Polygon Helios C8X Disc - Bike Radar Review
Ultra-value hydro-electric road
Pitched as an endurance bike, with attached claims of uprightness and comfort, we found the C8X a slightly confused package. While it may have the angles of popular endurance bikes, its reasonably long reach handlebar and 110mm stem stretch things out.
Quality rubber and a Shimano carbon/alloy wheel are exeptional for a bike of this price
The Shimano RX830 wheelset is the top-end road disc brake hoop from the Japenese giant and is a remarkable choice given the bike’s price and already impressive groupset. The 1.87kg paired weight isn’t anything to boast about, but many other attributes of these are desirable, including the tubeless compatibility in a wide rim design, fast and durable Ultegra-level hubs and the stiff construction.
Completing the overall build is a handful of Polygon’s house-brand ‘Entity’ carbon componentry. A swept carbon handlebar with semi-internal cable routing is nice, but despite the compact shape in the drops, we would have preferred a shorter reach to the hoods. Holding this in place is an FSA K-Force OS-99 stem, something commonly seen in the WorldTour.
In the end, it’s impossible to argue with the C8X’s value for money, and it’s a whole lot of bike on offer. Nevertheless, the heel rub is a concern – and if you’re seeking the absolute comfort on offer from bikes like the Trek Domane, Specialized Roubaix or CannondaleSynapse – no amount of Shimano gadgetry will make this the best bike for you. Also, don’t forget to include the cost of a bike fit in the end price.