The speed limit on Lookout Mountain is 20 mph (32 km/hr). In the past the Jefferson County Sheriff”s Department has ticketed some two-wheeled speeders, including cyclists, on Lookout Mountain. This speed limit is important for descending cyclists to observe to keep them safe as they approach blind corners. Keeping your hands close to your brake levers is a habit you will learn sooner or later while descending the mountain. Please do not learn this lesson the hard way.
If you can average 20 mph while riding up Lookout, you probably bought yourself an electric bike and are getting a few sidelong glances as you pass the human powered models because your ride seems so effortless.
The relatively steep grade, about 5.3%, allows a descending cyclist to quickly reach a speed which cannot be maintained around many hairpin corners. High downhill speeds also reduce the time available to react to vehicles, wildlife encounters, etc. Cyclists must insure that they have adequate braking capability before making the descent. Please be courteous and safe and announce your presence if you must past slower cyclists-on their left– on the descent.