Men's Size Guide
This is a standardised guide to give you an idea of what size you will need, however some brands may vary from these conversions.
Sometimes the simplest designs are also the smartest. The Trinity is an easy fit for riders who want a classic cycling helmet that doesn’t compromise comfort or performance.
It includes top-level features like in-mold construction to keep the weight low, and the easy one-handed adjustments of our acclaimed Acu Dial system for a quick, sure fit no matter where or how far you ride.
Helmets that are sold on Probikekit.com are certified with a European CE EN1078 standard. This is a European standard and although the helmet is perfectly safe to use, specific countries may have their own certification which is legally required if you intend to wear the helmet recreationally or in a competitive racing environment. If you are unsure, please check your specific country requirements and check with the manufacturer to see if the helmet has received any additional certification.
You will receive an email to confirm when your item has been sent.
Please see our returns policy.
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