Chain reaction cycles logo wheel bagthechain reaction cycles logo wheel baghave been manufactured from the same heavy duty material as the bike bag these can be used independently with the included shoulder straps or stowed inside the main compartment the interior of the wheelbags feature a separate compartment for storing qr axles 2 heavy duty pvc discs have also been placed in the centre of the bags to eliminate any chance of axleswheel nuts piercing the exterior of the bag features se