The Sprocket Crankcase Crank Guard Protector G4QA48 is a black plastic chain guard designed to fit universal and Bonanza bikes. This single part helps to protect the bike's crankcase from damage caused by the chain and sprocket. Perfect for cyclists looking to keep their bike in top condition, this crank guard is a practical and durable component for any bike enthusiast's collection. 21mm diameter, 10mm between screws
