Troy Lee Designs A2 MIPS Mountain Bike Helmet

What kind of protection does Troy Lee MIPS helmet offer?

The Troy Lee Designs A2 MIPS offers a high degree of protection through its combination of good coverage, a MIPS liner, and a unique dual density EPS and EPP foam liner. This is an extended coverage helmet, and it has a relatively deep fit with good coverage down on the sides and the back of the head.

How long has Troy Lee Designs been making helmets?

They’ve been making the A2 for a few years now, and the helmet’s design has remained the same, although it’s offered in new styles and colorways each year. Testers took a liking to the A2, and it scored well against a stacked field of the best helmets on the market.

How does the Troy Lee A2 fit on your head?

Like most other helmets, the A2 has a fit adjustment system that is used to snug and secure the helmet on your head. It is controlled by a large glove-friendly knob at the back of the head that tightens or loosens the harness/cradle on the occipital lobe.

Why did Troy Lee design the A2 MIPS?

Troy Lee Designs claims that this design works to more effectively manage impact energy at both low and high speeds. We never struck our heads while wearing the A2, but the dual density foam concept makes sense to us.


Troy Lee Designs are the designer and manufacturer of this next cycle helmet that we’ll take a look at. It is certainly a very eye catching design, but this model is also packing a number of high-grade features.

First to note is that this model is the second style of mountain bike helmet to deploy MIPS in the design. As we discussed with the Giro model earlier (and we’ll get into more in our buying guide below) MIPS is not for everyone – but if it is something you are interested in, it is certainly deployed very well in this design here.


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