Our stores remain open and you can shop online. Find out more
New To Sigma Sports?
£10 off £100* - code SIGNUP10

Troy Lee Designs A1 MIPS MTB Helmet

★★★★★ ★★★★★

Select a colour and size to view stock availability

Troy Lee Designs
A1 MIPS MTB Helmet

We're sorry, but unfortunately, we're unable to ship this item to your country

Product ID: 1186259

Troy Lee Designs A1 MIPS MTB Helmet

The A1 MIPS MTB Helmet from Troy Lee Designs provides comfort and protection when out on the trails. The reinforced polycarbonate shell and the EPS liner extend down at the rear and sides of the head to provide better protection, and the MIPS (Multi-directional Impact Protection System) allows the shell to move independently of the liner in the case of oblique impacts. This, in turn, means that the sheering forces aren’t transmitted to the head and brain.

Multiple front and rear vents keep the air flowing through the helmet for improved temperature control and the anti-microbial liner is removable and washable. A large range of adjustability is provided by the triple position retention system so that a comfortable and secure fit is assured and the visor is also fully adjustable so it can be worn with a variety of eyewear.


  • Reinforced polycarbonate shell in-moulded with the EPS liner extending down the sides and back of the head for maximum protection and durability
  • MIPS rotational slip protection
  • Eight pressurised intake passages draw in cool air for maximum ventilation
  • Eight rear vacuum vortex outlets help exhaust and draw heat from the head
  • Triple position adjustable retention system allows customised fit for various eyewear, head shape and riding styles
  • Single-piece, ultra-plush, removable and washable comfort liner made of anti-microbial moisture-wicking material for a dry, comfortable feel
  • Full-spectrum adjustable moto inspired visor with anodised aluminium hardware
  • Race-inspired styling
Please note: Unless otherwise stated, all bicycle helmets sold on SigmaSports.com are certified with a European CE EN1078 standard. Specific countries may have their own certification, which is legally required. Please check your specific country requirements.

Troy Lee Designs A1 MIPS MTB Helmet Sizing

Close menu