The perfect way to power your bike is to hook one of the Hoch+Ti chains. Direct and solid contact to avoid 5%-8% energy loss in transmission. The co-shaped structure helps pedaling forces passing on effectively. Precision made roller ensures close stay on chainring while silently rolling over the drivetrain system. Awesome 200 grams for 100 links (more than what you need for a BMX bike. The special alloy-steel made plates and the up-to-date DHT is adapted to enhance its strength and chain life as well. Comes with 2 sigma quick connector link as a special Teflon lube.