Bilt Rib Cage Roost Guard The Bilt Rib Cage is one of the most versatile roost guards on the market today. Removable arm guards and fully adjustable front and rear shoulder attachments are just a couple of the features that set the Rib Cage ahead of many higher priced roost guards. Features: Low profile shoulders feature plush padding Removable arm guards with quick release facility Fully adjustable front and rear shoulder attachments Polycarbonate front and rear panels with shock resistant properties PVC reinforced torsion hinge within the two piece back panel fits to the rider Easy release secure side closure buckles Comfort Bio Foam padding throughout