Sweet Protection Trailblazer helmet review

Sweet Protection’s latest Trailblazer uses trickle-down tech and a fresh, aspirational aesthetic to create a distinctive and deceptively breezy trail/enduro lid

Sweet Protection Trailblazer
(Image: © Guy Kesteven)

Bike Perfect Verdict

Trailblazer ticks all the boxes for premium head protection with stand-out style but that’s reflected in the price. Lots of MIPS cradle contact and distinctive shape won’t suit everyone either


  • +

    Sweet build detailing

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    Area tuned protection

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    Good high speed venting

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    Six colour options


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    High price

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    MIPS increases low speed sweating

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    Fit isn’t universal

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Sweet Protection’s new Trailblazer is loaded with extra aspirational touches, advanced protection features and the visually limited venting actually works well on the trail if you’re moving. High quality means high price though and the fit and slower speed sweating won’t suit everyone - but is it a genuine contender as far as the best mountain bike helmets go? 


Sweet Protection introduced the Trailblazer’s innovative construction technique on the £189.99 Bushwacker. It uses a four-piece EPS body with different densities depending on likely impact profiles for each area moulded into the full coverage hardshell. While the 16 vents include some very small slots and squares upfront, extensive STACC – standing for ‘Superficial Temporal Artery Cooling Channel’ - shaping and big exhaust vents pull a surprisingly high volume of airflow across the areas where it makes the most difference.

The matte look is highlighted with gloss insert panels, with six different colourways and a polished metal logo front and rear for a premium aesthetic. The OCCIGRIP rear cradle dial is really crisply made and the Y buckles on the straps are a lightweight butterfly design. The mid-sized shatterproof peak is widely adjustable with a subtle but secure ratchet to tune glare or make room for goggles plus it’s replaceable if you wreck it in a crash.

This all makes it a cool helmet from a form and function perspective but there are some issues. Sizing is definitely on the large size and overall fit didn’t work for all our test team, with several suffering significant back and forward or side to side movement unless the cradle was cranked up uncomfortably tight. While minimal padding means soggy upholstery isn’t an issue the MIPS cradle creates a lot of contact area and the small vents don’t radiate much heat if you’re going slow. While it’s definitely a premium looking helmet with some nice touches and a more complex construction than most, price is definitely high too. You can mitigate that and the sweaty cradle issue by opting for the non-MIPS version at £129.99 though.


Distinctive styling and premium touches backed up with good venting on the go and enhanced EPS and MIPS protection. The fit needs checking before buying though and low-speed cooling isn’t so good. 

Tech spec: Sweet Protection Trailblazer MIPS helmet  

  • Weight: 376g 
  • Colours: 6
  • Price: $179.95 / £159.95
Guy Kesteven

Guy has been working on Bike Perfect since launch in 2019. He started writing and testing for bike mags in 1996. Since then he’s written several million words about several thousand test bikes and a ridiculous amount of riding gear. To make sure he rarely sleeps and to fund his custom tandem habit, he’s also penned a handful of bike-related books and talks to a GoPro for YouTube, too.

Current rides: Cervelo ZFS-5, Specialized Chisel, custom Nicolai enduro tandem, Landescape/Swallow custom gravel tandem

Height: 180cm

Weight: 69kg