HighSpeed easily transports mountain, road, and fat-tire bikes and fits both quick release and thru axles. Bikes are secured using the TorqueRight™ knob for a precise and stronghold and is designed for maximum hatch clearance. HighSpeed easily transports mountain, road, and fat-tire bikes and fits both quick release and thru axles. Bikes are secured using the TorqueRight‚Ñ¢ knob for a precise and stronghold and is designed for maximum hatch clearance. Seamlessly carries both quick release (9mm) and thru axle bikes (100x12mm\, 100x15mm\, 110x15mm\, and 110x20mm), (fat bike adapters sold separately) Rear wheel tray fits up to a 5" Fat bike tire TorqueRight knob allows for quick and precise bike retention Tool-free universal mounting hardware with conversions available to T-Slot CrossBars