Bontrager Quantum WSD helmet review

Affordable, breezy women’s lid

Our rating 
4.0 out of 5 star rating 4.0
GBP £50.00 RRP | USD $65.00
Bontrager Quantum WSD helmet

Our review

Looks the business on the trails and will happily double up as a roadie lid
Skip to view product specifications

The Quantum helmet from Bontrager is great value, and it doesn’t look or feel like a cheap lid.


The reinforced outer shell stretches all the way down the back – not always the case with cheaper helmets – and the straps are easily tidied away once you’ve adjusted them. The streamlined shaping and ample ventilation look racy too, yet the peak, which is firmly attached and also removable, is just substantial enough to keep the weather out.

Most importantly, the fit feels superglue-secure. The internal mechanism locks firmly around your head (yes, there’s space for a ponytail) and doesn’t jiggle about on rocky terrain. The rear adjustable dial means you can get the grip just right and the pressure feels evenly distributed so there aren’t nasty sore spots even after you’ve been wearing it for several hours. There isn’t much in the way of internal padding, just a series of fingers stretching back from your forehead, but we never found it uncomfortable or in need of extra cushioning.


But perhaps the cleverest thing about the Quantum is its jack of all trades appearance. It really does feel like a mountain bike helmet when you’re out on the trails, but whip off the peak and you won’t be scowled at by even the grumpiest group of roadies for not complying with the rules. That said, since it comes in a range of hues from pretty turquoise to serious red, you could stock up and have one to match each bike!

Product Specifications


Name Quantum WSD helmet (15)
Brand Bontrager

Description Available in 4 colours / 2 sizes
Vented Yes
Visor included Yes