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Bontrager Circuit MIPS helmet review

All-rounder cycling helmet with Multi-directional Impact Protection System for added helmet safety

Our rating 
4.5 out of 5 star rating 4.5
GBP £100.00 RRP | USD $160.00 | EUR €150.00 | AUD $200.00
Bontrager Circuit MIPS road cycling helmet

Our review

Well thought out all-rounder with rider-friendly features
Pros: MIPS, Boa retention, looks, ventilation
Cons: Shape might not be to everyone’s tastes
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Bontrager has designed its Circuit MIPS helmet as a jack-of-all-trades, whether it’s commuting, road or gravel racing.


It boasts a racy-looking shell where the composite outer acts as an external skeleton that allows for larger-sized vents without compromising strength.

This not only helps to keep weight down (280g in a small/51–57cm) but also aids with cooling.

The 15 vents with internal channelling worked well, so there was never an issue with overheating, even when I was working hard.

Alongside the neatly integrated inner MIPS safety system, I was impressed that the shell remained compact like a more traditional race helmet.

The shell also features Bontrager’s Blendr system on the top and rear that allows rattle-free mounting of a light and camera.

Helmet fit is adjusted with a neat looking Boa dial system that uses wires at the rear to secure tension. It’s incredibly simple to use as well as being lightweight, and it works a treat.

I also greatly appreciated the soft webbing side straps for the added comfort that they gave, and these are also easily adjusted with a flip and lock system.


The Circuit is a good all-rounder helmet and it comes with Bontrager’s free crash replacement in the first year for added peace of mind.

Product Specifications


Price AUD $200.00EUR €150.00GBP £100.00USD $160.00
Weight 280g (S)
Brand Bontrager


Features Sizes: S 51-57cm, M 54-60cm, L 58-63cm
Colours include: Black, Blue, Fluro/Black, Grey, Pink, White
Helmet type Road