Legal Requirements
The state of North Dakota (USA) actually has minimum and maximum requirements on rake and trail for "manufacture, sale, and safe operation of a motorcycle upon public highways."
"4. All motorcycles, except three-wheel motorcycles, must meet the following specifications in relationship to front wheel geometry:
- MAXIMUM: Rake: 45 degrees - Trail: 14 inches positive
- MINIMUM: Rake: 20 degrees - Trail: 2 inches positive
Manufacturer's specifications must include the specific rake and trail for each motorcycle or class of motorcycles and the terms "rake" and "trail" must be defined by the director by rules adopted pursuant to chapter 28-32."
Read more about this topic: Bicycle And Motorcycle Geometry
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