Italian brand ZeroRH+ have a range of three helmets in their cycling portfolio; the ZR, the ZX and this - the ZW.
The ZW, like practically all helmets on the market,is made from an expanded polystyrene (EPS) liner which is co-moulded to the polycarbonate shell. This keeps the helmet together after the first impact just in case of a second.
The Carrera Radius helmet is the top-of-the-range model from specialist manufacturer Carrera. It's pretty light, claims good aero credentials, and has an adjustable set of straps at the back to hold it firmly on your head.
The Bell Volt helmet is the brand's second-tier helmet. It feels reassuringly tough, not weighty, and looks similar to the top-tier Gage helmet, as worn by BMC team riders, thanks mainly to the pods behind the ears.
The Volt is priced at an RRP of £139.99, it's currently available at just under £100 at most outlets. The 320g claimed weight of the helmet disappears when in use; I've yet to use another helmet where the weight seems so well distributed.
Oozing stereotypically Germanic refinement, the Uvex XP City helmet feels much closer to a road specific model than its urban tag suggests.
Sixteen vents, CE accreditation, peaks, bug netting and integral LEDs add up to an absolutely flawless finish - an example of in mould construction at its very best. I was particularly taken with our sample's grey livery that looked great with everything, but coupled with some equally subtle reflectives, comes alive under street and vehicle lighting.
The Amare from Giro is no cheap and cheerful beginner's lid, it's a properly technical, super light and highly ventilated helmet, aimed at demanding riders.