A track bicycle or track bike is a bicycle optimized for racing at a velodrome or outdoor track. Unlike road bicycles, the track bike is a fixed-gear bicycle and so has a single gear and neither freewheel nor brakes. Tires are narrow and inflated to high pressure to reduce rolling resistance. Tubular tires are often used.
A track bicycle differs from one used on the road by having:
• a higher bottom bracket so the pedals do not touch a steeply banked track;
• steeper seat tube for a more powerful aerodynamic positions;
• steeper head tube for more responsive steering; and
• less fork rake.
