Motorcycle riders, listen up! If you've got a Kawasaki KX250 (from '87 to '89) or a KX500 (from '87 to 2004), this Caltic drive chain and sprocket kit is made for you. It includes a green O-ring chain (120 links long, with a tensile strength of 8200 pounds) along with both sprockets: a 14-tooth front sprocket made from steel and a 47-tooth rear sprocket made from C49 high-carbon steel. The O-ring design means the chain lasts longer and needs less maintenance than a standard chain, which is a big plus if you're hitting the dirt trails hard. Everything comes together as a complete kit, so you don't have to hunt down parts separately. Before you buy, it's always smart to double-check compatibility with your specific bike model and year. Compare the pictures to your current setup to make sure it matches. This is an aftermarket kit, so it's a cost-effective way to get your bike back in action. Good for motocross, trail riding, or any off-road fun. Get that chain rolling again!