Basically all of the 50cc mopeds had to be artificially crippled to keep them under legal speed limits for them (typically 40-50km/h depending on country). Remo

Basically all of the 50cc mopeds had to be artificially crippled to keep them under legal speed limits for them (typically 40-50km/h depending on country). Remove the cripple and they'll all go 70-80km/h or more. This isn't even with upgraded parts, which makes them go 100km/h-ish and more, although the suspension, frame and brakes on them will definitely not be up to the job safely without upgrading those too.