Troy Lee Designs SE4 Polyacrylite Beta MX Helmet Fitment Size 1: 16 strand 9/16

Size 1: 16 strand 9/16 inch

If simplicity is something you strive for

full coverage

Leffingwell features a full rim

Wide band style is for use with OEM-style calipers

Troy Lee Designs SE4 Polyacrylite Beta MX Helmet Fitment Size 1: 16 strand 9/16Weighing in at 1500 grams, the SE4 Polyacrylite Helmet comes with MIPS, incorporating brain rotational protection. This helmet comes with 16 intake ports to channel cool air around and over a rider's head, forcing hot sweaty air out through six rear exhaust ports. The SE4 Polyacrylite is DOT FMVSS218 certified. FEATURES MIPS brain protection system, reduces rotational forces to the brain EPP (Expanded PolyPropylene) chin bar for lightweight, durable