A chain and sprocket drive is a type of power transmission in which a roller chain engages with two or more toothed wheels or sprockets, used in engines as a drive from crankshaft to camshaft. WELCOME TO VICKY MOTORSHOP!!! ✔️Guaranteed 99% Brand New and High Quality Motor Parts ✔️We send actual photos before shipping the product 📸 ✔️On-hand Ready to ship ✔️Very affordable ✔️Message us for questions 📩 ✔️Accept wholesale and retail price ❌No cancellation of orders once order was arrange/pick-up/delivered. Please Like and Follow our shop for more product updates! Happy Shopping !! ❤️