This lightweight, fully encapsulated all-mountain helmet utilizes maximum coverage and dimension to keep you safe and protected 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, protection and style you want.
"The A1 Helmet is an aesthetically-pleasing helmet that delivers outstanding fit and comfort."
- Gear Institute
With the A1 helmet, we at Troy Lee Designs returned to the aggressive all-mountain half shell category.
GRAY / RED
WHITE / GRAY
GRAY / OCEAN
|HELMET SIZE||HAT SIZE||CM||INCHES|
|XS*||6-1/4 to 6-3/4||50 to 54||19-3/4 to 21-3/8|
|XS/SM and SM*||6-3/4 to 7||54 to 56||21.3 to 22|
|MD/LG||7-1/8 tp 7-3/8||57 to 59||22.4 to 23.2|
|XL/2XL||7-1/2 tp 7-7/8||60 to 62||22.6 to 24.8|
Starting at $539.00 DESIGN CONCEPT The world’s most evolved motocross helmet has evolved. Fully loaded with...
RPHA 70 CARBON REPLE RPHA 70 CARBON REPLE RPHA SERIES A supreme sport-touring helmet designed for any ride...
Shop For Alpinestars Motorcycle Gear