Stay Strong Optimum STR BMX BikeMade predominantly for Street riding, the Optimium from Stay Strong features everything you need to hit the streets with confidence. Firstly the Optimum is spec'd out with exclusively sealed bearings meaning that everything is solid, lightweight and requires minimal maintenance. This Model features a fully sealed 9t cassette and 2 piece bars making it perfect for street, park and anything else you can throw at it (if you want a pure street bike check