This is a fantastic helmet and a real, genuine contender vs the Ionos/Atmos/Specialized 2-D/etc.
I had real trouble finding a helmet that fitted my head - when pulled even vaguely tight ,most of them "pinched" at the front and back of my head while remaining loose at the sides - until I tried this one!
As well as a different shape to the helmet, the K10 has a very different fixing mechanism that is hinged and will sit much lower at the back (more like the feeling of an MTB helmet) while retaining the wheel/dial mechanism of most road helmets which allows a lot of customisation of the fit for different head shapes
Strangely, the top-of the range C-50 Vertigo was nowhere near as comfortable for me - it has the same fixing mechanism, but the helmet shape is very different and more like the Atmos/Ionos.
It is really very light (lighter than my Bell Sweep R) and has fabulous venting, so keeps you nice and cool.
Only downside is that being relatively new to the UK, some of the accessories are not yet available, but as long as they eventually appear as aftermarket items, I will be happy as the helmet itself is an absolute gem.
If you look around, they do quite a range of colours, but be prepared to hunt, as most places are just stocking the Team Sky version which will not be to everyone's tastes!!
Overall, a terrific helmet that really stands out from the crowd.
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