Generally,bicycle have many styles,like mountain bike,city bike,folding bike and others,For the parts,also as well.

Brake:V-brake.Caliper brake,disc-brake,Coaster brake,Band brake and others.Of course,disc-brake including mechanical and hydraulic disc-brake.

Suspension Fork:hydraulic suspension fork and normal suspension fork.

Derailleur Brand: Shimano sets.Surance sets.