It will fit most mountain bikes and attaches with velcro straps for a secure fit

It has a long-lasting external battery pack and comes with both a bar mount and helmet mount for mounting versatility

Neck: Round cut neck with an extra stretchy hem for increased freedom of movement

5 and 7mm keys aren't commonly found in the bicycle industry

currently popular with custom frame builders and starting to be adopted by larger frame manufacturers

TLD Flowline SE MIPS Helmet - M-L - Badge Olive - Indigo Needs Images It will fit most mountainDETAILS Be sure to stay safe on your bike rides with the Flowline SE Helmet from Troy Lee Designs. This half shell helmet seamlessly combines safety, comfort and style. Enjoy reliable impact absorption and a breathable airflow system with the helmet's design. Plus, the easy to use magnetic buckle ensures a secure closure every time. Conquer the mountain bike trails, or city streets, with the Troy Lee Designs Flowline SE Helmet. SPECIFICATIONS 3 Way