Celebrating 40 Years of Creative Horsepower - Troy Lee Designs. Born in Corona, California A1 MIPS: Fit, Coverage and Style Here at TLD, styling, graphics, fit, function and coverage are key in everything we create. After years of research and development, the Troy Lee Designs Team introduced the A1 helmet in 2013. We made one of the most comfortable MTB helmets on the market with the addition of MIPS. This lightweight, fully encapsulated all-mountain helmet utilizes maximum coverage and dimension to keep you covered in all riding conditions. Whether you're charging single track, riding dirt jumps, or grinding out miles on the XC bike, the A1 helmet offers the premium fit, coverage, and style you want. A1 is perfect for the MTB rider just starting out with mountain biking or eMTB or the expert rider on a budget Helmet visor Innovative break-away anodized alloy visor screws help reduce the likelihood snagging MIPS and liner MIPS and premium comfort liner that is quick dry material. Retention system Adjustable retention fit system with easy to spin dial. In addition 3 way adjustable system to position the cradle higher or lower across the back of your neck Ventilation and coverage Durable yet lightweight outer microshell with EPS impact material matched to internal ventilation channels gives you performance and comfort to enjoy your mountain bike ride A1 What's in the Box A1 comes with helmet, custom A1 carrying bag, spare comfort liner Velcro dots, emergency ID sticker, sticker sheet, manual A1 MIPS A2 MIPS A3 MIPS Stage MIPS Buying Options Buying Options Buying Options Add to Cart Customer Reviews 4.8 out of 5 stars 773 4.7 out of 5 stars 843 5.0 out of 5 stars 9 4.7 out of 5 stars 154 Price — no data — no data — no data $319.99$319.99 Rider Category Mid range MTB Trail helmet Mid range MTB Trail helmet Full depth coverage MTB/Enduro Trail helmet Full face/full depth coverage Weight 360g 350g 375g 690g Rotational System MIPS C-solution (Thermoformed PC LFL) MIPS C-solution (Thermoformed PC LFL) MIPS B32 solution integrated into retention system MIPS Adjustable Visor Yes Yes 3 position including goggle stowage 3 position including goggle stowage Impact liner EPS EPS/EPP EPS/EPP Comolded ESP/EPP Fit system retension TLD V1 TLD V2 New TLD FIT system, Full 360, Micro ratchet adjust 3 sets jaw, 2 liner, 3 neck Liner Quick dry material Ionic comfort liner 2 piece Ionic liner Ionic Vents 14 14 16 22 Coverage Mid Mid Deep. Our most coverage half shell Full face Goggle Stowage No No Yes Partial What began as a hobby of a motocross racing teenager named Troy Lee, painting helmets in his parents' garage for his friends, has grown to become recognized as the premier custom helmet paint shop in the world. Troy Lee Designs supplies motocross and mountain bike gear to the world's fastest racers.