Troy Lee Designs A1 AS Classic Mountain Bike Helmet MIPS Black/Red RGroup_59DD7EAA9034012B2964C57119B39D408A7C7233 Front Axle Compatibility: QR

Front Axle Compatibility: QR

Accuracy: 1

By utilizing their Gradient Butting Technology and investing in proper heat treatment for each handlebar model

The TR90 frame is durable

it accommodates 38c tires

Troy Lee Designs A1 AS Classic Mountain Bike Helmet MIPS Black/Red RGroup_59DD7EAA9034012B2964C57119B39D408A7C7233 Front Axle Compatibility: QRFit, Protection, Style At TLD, styling, graphics, fit, function and safety 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 even safer with the addition of MIPS rotational brain protection. This lightweight, fully encapsulated all mountain helmet utilizes maximum coverage and dimension to keep you safe and