Most of my riding on this bike is a daily commute. My top speed is usually around 65 mph. The 4 gear set up is perfect for this type of riding IMHO. If I were to ride on the highway for extended periods of time I would probably do the very inexpensive sprocket swap to reduce the rpm at higher speeds, but it really doesn´t NEED that. This bike will handle 90 mph all day long... can you :)