Wolf Tooth's B-RAD Accessory Strap Mount is an ingenious system that optimizes trail bike storage with limited clearance. It's also a great addition to a gravel bike or daily commuter, as it holds spare tubes, bottles, and other items with clean organization. Designed to integrate with this aftermarket mounting system, the Wolf Tooth Components B-RAD Accessory Strap Mount carries virtually any riding accessory measuring 50 to 80 millimeters in diameter.