PSI: 45-58

Who's this item for: Anyone that needs to break a chain or perform simple repairs on their bike

The top guide has a tool-free flip feature that allows easy access to your chain for cleaning and maintenance

360° fit system incorporates a height-adjustable yoke for a comfortable

A sellout hit when it first launched on Kickstarter

Fox Dropframe Pro Flow Helmet - S - Black Needs Images PSI: 45-58Maximum coverage, open face mountain bike helmet The Dropframe Pro Flow Helmet is a game changing, open face 3 4 enduro helmet. It features Mips, the BOA Fit System for class leading fit and security, increased ventilation, plus an Ionic+ liner and cheek pads to optimize fit and comfort.