Troy Lee Designs A3 Helmet Uno Pumice, Medium/Large bottle-cage-storage Works with a 5mm Allen

Works with a 5mm Allen wrench or any mini-tool with a 5mm Allen key to provide correct tightening of frame and component bolts to recommended torque values for safety and performance

Scalloped flanges on Hydra2 j-bend hubs increase overall strength

Compatible with threaded CO2 cartridges

032g Intended Use Mountain Cassette Spacing Shimano/SRAM 9 Cassette Body Type Shimano 9/10/SRAM Cassette Cogs 11

Available in an array of confetti colors

Troy Lee Designs A3 Helmet Uno Pumice, Medium/Large bottle-cage-storage Works with a 5mm AllenHead of the class, A3 leaves nothing to chance by setting the modern standard in protection and fit as demanded by Troy Lee Designs' athletes. Equipped with Mips protection, the co molded EPP EPS design features sixteen vents to optimize airflow making for a helmet that is so comfortable it practically disappears on your head. Co molded EPP and EPS with Mips B Series rotational impact protection Advanced 3 piece shell and 3 Way Magnajust visor for