Lightweight 16-inch steel frame is the perfect bike for rides around your neighborhood or trails. The 24-inch wheel frame fit riders 5’5” to 6’0” inches tall. Bicycle comes with an alloy crank that provides steady gear changes that cause less maintenance Mountain bike has twist shifters with a rear derailleur to make gear changes quick and easy Wide knobby mountain tires sit on a lightweight and durable alloy wheel that adds stability and balance to the rider for all weather and terrain types .