I just went and bought 2 new chains,one for each side,they are 410 chain diamondback bmx heavyduty
1/2"x1/8" 116 links @ $10 each. They work very good and im using stock sprockets not modified. These chains are for a single speed bike.
These are not the same as a chain for multispeed bikes,the chain for mutispeed bikes will not fit.