Bold riding for kids, teens, and adult women alike. Meet the High Timber ALX Step-Thru 24”, a mountain bike that can get anyone into the sport. Go exploring with the High Timber ALX Mountain Bike by Schwinn. This bike features Schwinn aluminum MTB frame with Schwinn suspension fork for all around fun out on the trail. The 21-speed twist shifters and alloy cranks provide easy gear changes. And you can ride with confidence thanks to the front and rear mechanical disc brakes that deliver extra stopping power. Rider Height: 56"-66" Ages: 10-15 21-speed Shimano Revo shifters and Shimano rear derailleur offer quick gear changes. Alloy mechanical disc brakes deliver superior stopping power. Schwinn alloy triple cranks offer optimal gearing. Schwinn 24 X 2.1 All Terrain tires provide go anywhere traction. Quick release seat post makes for easy height adjustment.