section_path: Construction/Hub
section_name: Hub
paragraph_text: Hub
  
  The hub is the center of the wheel, and typically houses a bearing, and is where the spokes meet.
  
  A hubless wheel (also known as a rim-rider or centerless wheel) is a type of wheel with no center hub. More specifically, the hub is actually almost as big as the wheel itself. The axle is hollow, following the wheel at very close tolerances.