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UNIT 1 AURA smart cycling helmet in Stingray grey
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UNIT 1 AURA

UNIT 1 AURA

£199.90 GBP
ColourStingray
SizeSmall

UNIT 1 AURA & FARO sizing

Head circumference

SizeOval head Round head
Small 51 – 55 cm 51 – 54 cm
Medium 55 – 60.5 cm 54 – 59 cm
Large 60.5 – 63 cm 59 – 61.5 cm

How to measure

Helmet size is based on the circumference of your head. Take a soft tape or a length of string and measure right around your head, just above the eyebrows and around the widest part at the back. Keep the tape level and make sure it wraps the full way round. Measure twice — it is easy to be a centimetre out.

Getting the fit right

UNIT 1 give two ranges because head shape affects fit as well as circumference. An oval head is longer front to back and narrower side to side; a round head is closer to equal in both. If you are unsure, use the oval column — it is the more common shape — and if you fall between two sizes, take the larger.

The helmet should sit level, with the front edge just above your eyebrows — not tipped back off your forehead. Tighten the dial at the back until it feels snug with only a little movement, then set the straps so the junction sits just below each ear. Head shape is easier to judge in person, so come in and we will fit you properly.

Front and rear lights, built into the shell at head height — above parked cars and anything loaded on the bike, and further into a driver's view than a seatpost light manages. Add the UNIT 1 Remote and the rear light also brakes and signals with you. MIPS and NTA-8776 e-bike certification come as standard. UNIT 1's most complete helmet, and their most fully specified.
Key specifications
  • Build EPS liner in a polycarbonate shell, ten vents, IP67 water and dust resistance. FIDLOCK magnetic buckle. 440g in size M.
  • Lights Front and rear, integrated into the shell, up to 350 lumens.
  • Power 1350mAh battery, charged over USB-C.
  • Also Bluetooth 5.0 and a 3-axis accelerometer, for light control and crash alert through the UNIT 1 app. Six colours, three sizes.
Compatibility

Turn signals and the automatic brake light need the UNIT 1 Remote, a handlebar control sold separately. Without it the front and rear lights still work as normal.

The UNIT 1 app pairs over Bluetooth for light settings, battery level and crash alert. A magnetic Speed Visor is available as an optional add-on for low winter sun.
What's in the box

AURA helmet and a USB-C charging cable. The UNIT 1 Remote and the Speed Visor are sold separately.
Safety & certification

MIPS fitted as standard — a low-friction layer inside the shell that shifts slightly during an angled impact, reducing the rotational force reaching your head.

Certified to NTA-8776, the standard written for e-bike riding, which tests to a higher impact energy than EN-1078 and asks for more coverage at the temples and rear. Also certified to EN-1078 and CPSC, and rated five stars by the Virginia Tech helmet ratings.

Frequently asked questions

Who is the AURA for?
Anyone riding an e-bike or navigating London traffic who wants to be seen properly from every angle, not just from behind. It suits daily commuters and anyone on a heavier or loaded bike, where NTA-8776's higher protection threshold matters most. Pair it with the UNIT 1 Remote and it also handles your turn signals and braking, which is worth having if you're weaving through junctions and buses.
What does the UNIT 1 Remote add?
The Remote is a small handlebar control, sold separately. Fit it and the AURA's rear light brightens automatically when you slow down, and its buttons let you signal a turn without taking a hand off the bars. Without the Remote, the front and rear lights still work exactly as normal — you just lose the signalling and automatic braking.
Try the UNIT 1 AURA at Flying Dutchman in London
We keep the AURA in stock across our London shops, and it's genuinely worth trying on rather than ordering blind — the size that fits your head shape isn't always the one you'd guess from a chart. Come in, we'll fit it properly, and if you're pairing it with the Remote we'll get both set up and talk you through the app while you're here.

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