B&W Bike Case IIShell Made of Rugged ABS Material Perfectly sized for racing bikes, triathlon bikes, and mountain bikes up to 29 Aluminum rim with reinforced corners Reinforced main compartment Four sturdy, smooth running casters: two swivel, two rigid Two carry handles, two pull handles Two large wheelbags Frame suspension Foam block for chainring Chain guard Three foam pads to protect the frame Foam spacer for handlebars Spacers for dropouts and front fork ends