Sixsixone 661 Evo AM TRES MTB Mountain Bike Cycling Helmet

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What are the delivery costs?

We offer Free UK Delivery on all orders.

Including: Channel Islands, Isle of Man, Isle of Wight, Northern Ireland, Scottish Highlands and Scottish Islands.

Standard delivery is normally 2 - 5 working days.

International delivery costs and delivery times vary for different countries. Please see here for more information.

Christmas delivery

For guaranteed Christmas delivery please order bikes before 11am, Tuesday 20th December and all other items before 11am, Wednesday 21st December. Guaranteed Christmas delivery applies to all items with the icon, please choose your option/size to see if the specific item you are after qualifies for Christmas delivery.

The EVO AM (All Mountain) Helmet. As the name implies, the Six Six One Evo AM Helmet is a next generation trail helmet with all the features you need. The modern-looking shell is built from Contigo foam, which was chosen for its energy-absorbing properties.
Specifically, it's claimed to absorb as much as 30% more energy from an impact than the EPS foams used in almost every other certified bicycle helmet. While that may be the most important detail, more subtle refinements, such as the two-position adjustable visor and the user-friendly Boa retention system mean that you don't have to forgo modern features in the pursuit of protection.
And it's topped off with a Fidlock magnetic buckle that takes pretty much all the effort out of strapping on your lid, despite the fact that it's completely secure.
  • Lightweight & well-ventilated through in-molding construction & 15 ventpoints
  • Additional protection through extended rear shell coverage
  • Precise fit with 3 independent shell sizes
  • Plush interior liner made with antimicrobial fabric
  • Contego EPS protection
  • Magnetic Fitlock closure system

Sizing: XS/S 54cm-56cm, M/L 57cm-59cm, XL/XXL 60cm-62cm