Zero RH+ Z Alpha MIPS review£160.00

Well-vented aero road lid

BikeRadar score4.5/5

RH+ says its first aero helmet – with its small removable (and pocketable) front cover – is the most ventilated of its type. The standard model is cheaper, but this MIPS (Multi-directional Impact Protection System) version offers superior protection against rotational forces in crashes.

With its sweeping, almost conventional shape, and its 22 sizeable vents, the Z Alpha looks very open for an aero helmet. The snap-on front cover is said to provide the biggest aero gains at over 40kph. It only hides the central four vents but has a slot to channel some air through. Our large sample weighed 326g without the 14g cover snapped into place.

The Power Fit Evo retention system has three heights, soft rubber pads and an excellent rear cradle with dial adjustment. It’s superbly comfortable and secure, and despite the MIPS system touching much of your scalp, cools effectively. Two central internal channels, plus the gap between the MIPS cradle and EPS shell ensure good air movement, even with the cover installed.

The Z Alpha is less specific than some aero lids and all the better for it, with great ventilation and classy looks. You can opt to have MIPS or not, but a little extra outlay for enhanced head protection is a no-brainer in our book.

This article was originally published in Cycling Plus magazine, available on Apple Newsstand and Zinio.

Robin Wilmott

Tech Writer, Tech Hub, UK,
Robin began road cycling in 1988, and with mountain bikes in their infancy, mixed experimental off-road adventures with club time trials and road races. Cyclocross soon became a winter staple, and has remained his favourite form of competition. Robin has always loved the technical aspect of building and maintaining bikes, and several years working in a good bike shop only amplified that. Ten years as a Forensic Photographer followed, honing his eye for detail in pictures and words. He has shot at the biggest pro events since the '90s, and now he's here, drawing on all those experiences to figure out what makes a bike or component tick.
  • Age: 45
  • Height: 178cm / 5'10"
  • Weight: 75kg / 165lb
  • Discipline: Road, cyclocross, time trials
  • Beer of Choice: Sierra Nevada Pale Ale

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