Special conditions1 of 1
How strong must the foot brake be in terms of stopping distance at 20 mph?
The answer
Answer: C. The foot brake must be strong enough to stop a vehicle traveling 20 mph within 30 feet. The emergency or parking brake must stop the vehicle within 55 feet at the same speed, and it must also be able to hold the vehicle on a grade or hill. Motor-driven cycles need only one brake.
Source: Illinois Rules of the Road 2026 — Chapter 12: Required Equipment, p. 92