The DriveShaft Track is engineered to fit into pre-existing track system found in some Toyota, Chevy, GMC, and Nissan truck beds, and fit bikes with 12mm, 15mm, and 20mm thru-axles including Boost 110 The DriveShaft Track is engineered to fit into pre-existing track system found in some Toyota, Chevy, GMC, and Nissan truck beds, and fit bikes with 12mm, 15mm, and 20mm thru-axles including Boost 110 Mounts vertically to help save as much precious cargo space as possible Designed with a wide mouth opening to for easy bike loading/unloading and a T-Bolt that adjusts for a tight hold so the thru-axle cannot be unscrewed Lock core and keys included