Sprocket for Detachable Chain, 8 Teeth w/ 3.75″ OD & 1/2″ Bore Fits 45 or 55 Chain Our eBay Store About Us Contact Us Add to Favorite Sellers Sprocket for Detachable Chain 45 & 55 – 8 Teeth w/ 4.75″ OD & 3/4″ Bore 34.95