Recreation's SilverRidge SE Step-Thru is a 21-speed entry level mountain bike for the recreational rider. It's made of alloy for durability on the path or trail. The suspension fork gives you comfort and control over rough terrain. The Shimano shifter provides easy gear changes to manage any hill and the aggressive tires provide traction under adverse conditions. FOR RIDERS: Height 5'5.0" - 5'8.0"