Moose offers this chain for mini applications. Non-O-Ring chain Designed specifically for mini-racing machines High application greased chain High-tensile strength nickel-plated inner link plates High-tensile rust-resistant gold plated side plates Solid rollers Clip-type connecting link included Recommended for applications between 50-80cc Important Notes: *Required chain length varies from bike to bike and also depends on gearing. Please be sure to order accordingly.*