Related Clues:

• Rapidity
• Radar measurement
• About 2 1/2 feet for humans, I suppose
• Nautilus locale
• Workout site
• Trotter's rhythm
• Where to get a 'six-pack'
• Put your foot down, in a way
• Violate the law, in a way
• Indy specialty
• Celerity
• Double-quick, e.g.
• Rate of speed
• Wear a hole in the rug
• Keanu Reeves movie