The DSB stands for the dual-sport bike. This is a bike that can't make up its mind. Today it is a road bike, tomorrow it is a sports bike the next day it is a ride with the family bike. Any way you play it the DSB is the perfect bike for everyday riding. It has an aluminum dual sport frame with a front suspension fork to smooth out any bumps. It has 21 speeds with trigger shifters, making the gear changes will be smooth and easy. No hill should stand in your way. There are dual disc brakes that will provide excellent stopping power in even dusty or wet conditions and the alloy double-wall rims are strong and lightweight. A great bike value that you will enjoy riding for years to come.