Giro Trinity helmet review
Giro is undoubtably a leader in bike helmet design. The Giro Trinity helmet is one of its entry level road lids. Here is our review

A little bulky, but well made and reliable. A great helmet for those wanting a quality commuting lid. Also perfect for those just getting into cycling.
-
+
Well made
-
+
looks cool
-
+
nice range of colours
- +
-
-
slightly heavy
-
-
retention system is little bulky
You can trust Cycling Weekly.
The Giro Trinity Helmet is the American companies entry level road specific helmet. At £39.99 it is slightly bulkier than Giro's more high end offerings. The helmet weighs 300g on our scales for a size 54cm-61cm (M), slightly heavier than the claimed 298g, but nothing to complain about. Although about 100g heavier than a premium lid, once riding you quickly forget.
There is ample padding on the inside that is pretty comfortable. The internal shape of the helmet is good too and felt comfortable on my head. With regard to helmets I would always suggest try before you buy, but the fit of this helmet is consistent with other Giro helmets, which seem to suit a wide range of different peoples heads.
The padding is also removable, meaning you can wash it if it starts to get smelly and sweaty after several rides – a feature you don't always see on entry level helmets at this price point.
>>> Buyer's Guide to road bike helmets
Video - Aero helmet vs TT helmet, what's the difference
The chin strap is different from the standard clip on other helmets. Although this slide through design (pictured below) is bulkier and heavier, it is ideal for children, because it is much harder to nip you skin when closing it. It is easy to adjust too.
>>> Giro Foray Helmet review (£49.99)
The retention system on the back works well too. Giro call it an Acu Dial™ system, but all you need to know is that it allows simple one handed adjustment of the tightness of the helmet. It isn't as good as the Roc Lock system found on more expensive Giro helmets, which in addition to being much more minimalist, allows for more precise adjustment.
>>> Review of Giro's top of the range Synthe helmet
The Giro Trinity helmet comes in a wide range of colours which is nice. You can spend a bit more money and get the Giro Foray (£49.99 rrp), which is considerably better for just £10 more, however for those wanting a no nonsense, well made helmet for commuting, this is a great option. We would also highly recommend it to anyone getting into cycling, perhaps considering their first sportive or triathlon.
Being Giro, it also conforms to all the required EU safety standards.
For more information, head over to Zyro.
Thank you for reading 20 articles this month* Join now for unlimited access
Enjoy your first month for just £1 / $1 / €1
*Read 5 free articles per month without a subscription
Join now for unlimited access
Try first month for just £1 / $1 / €1
Get The Leadout Newsletter
The latest race content, interviews, features, reviews and expert buying guides, direct to your inbox!
Oliver Bridgewood - no, Doctor Oliver Bridgewood - is a PhD Chemist who discovered a love of cycling. He enjoys racing time trials, hill climbs, road races and criteriums. During his time at Cycling Weekly, he worked predominantly within the tech team, also utilising his science background to produce insightful fitness articles, before moving to an entirely video-focused role heading up the Cycling Weekly YouTube channel, where his feature-length documentary 'Project 49' was his crowning glory.
-
I went on a press trip for a $1399 bike - here's why that's a big deal
Van Rysel’s GRVL AF launch might be the most sensible I’ve ever attended
By Anne-Marije Rook Published
-
'I've just been getting better and better': Jake Stewart sprints to first WorldTour win on Critérium du Dauphiné stage five
GC leader Remco Evenepoel crashed in the final stages but held on to the jersey
By James Shrubsall Published
-
Remco Evenepoel wore a new cutaway visor in the Critérium du Dauphiné time trial - here's the simple reason why
What do you do when your visor keeps hitting your hands? You custom build a new one
By Tom Thewlis Published