Question: what type of bike do i have?
Answer: Mountain Bike. Mountain bikes have wide knobby tires which allow them to be ridden in loose dirt and over obstacles. ... 
Hybrid/Comfort Bike. ... 
Road Bike. ... 
Triathlon/Time Trial Bike. ... 
BMX/Trick Bike. ... 
Commuting Bike. ... 
Cyclocross Bike. ... 
Track Bike/Fixed Gear.