BSD Barrier Sprocket Replacement Guard Show Options and Buy Regular price $10.99 Reg: $0.00 Save: $-10.99 25t Black 28t Black More Options » Buy Online - + Added! View Cart » Buy Local Find a Dealer Local inventory is different from what's available online. Please check with your local dealer before making an online purchase. If we have it in stock, that means they can too! In the unlikely event that you might need to replace the guard from your Barrier sprocket here it it, built from super tough nylon, the replacement guard comes with 4 x bolts for securing it to your sprocket.