“A slick looking endurance racer”
The Helios C6 is Polygon’s endurance ride carbon frame for the budget conscious rider, but there is plenty of value. The UCI approved C6 is made from Toray carbon fiber found on high end frames. The frame is designed for long rides, but the geometry is biased towards performance. Some road vibration does travel up through frame, but the increased stiffness means that the rider is never lacking for frame response. A careful selection of tyre model and size will address this, as would check inflation pressure. The ACX Endurance carbon fork, a close relative also found in the A5, has a more relaxed geometry, suiting the endurance riding nature of the C6.
Shimano’s tried and tested 105 groupset makes an appearance, providing value for money and reliability. The compact crankset makes spinning easy and short work of hills, while still providing enough top end gearing. The wheelset is Shimano’s RS-21 clincher. With stiffness and handling as part of the wheelset’s performance, the only thing it gives away is weight. Certainly a wheelset upgrade should be on the checklist and reserving the RS-21s for training duties.
The endurance oriented geometry of the Helios C6 means this is a bike suited for the rider who does lots of long distance rides. While the ride may not be as plush, the C6 isn’t too harsh. Careful selection of tyre and saddle, along with thicker bar tape, will pay benefits. The more upright headtube, along with generous spacing of the steerer, means you can fine tune the riding position. The handling is good, with the monocouque carbon frame playing a large part in inspiring confidence. The smooth tube shapes and hidden cabling make the Helios a slick looking performance endurance racer.
ACX Advance Endurance Carbon
ACX Advance Endurance Carbon Fork
with Carbon Tapered Steerer
Shimano 105 ST-5800
Shimano 105 FD-5800, RD-5800SS
Shimano 105 CS-5800, 11-28T, 11 speed – CHAIN –
Shimano 105 FC-5800 50X34T Compact – BRAKES –
Shimano 105 BR-5800
Entity Expert, Alloy, 27.2X350MM
Entity Flux, steel rail
Entity Expert, Alloy, 400mm (46-52),
Entity Expert, Alloy, 90mm (46-50),
100mm (52-54), 110mm (56-58)
Shimano RS-21, 700x23c
Rodalink @ 603-6201 0422