The Schwinn high timber is ideal for riders who want to take on a variety of terrain. The steel frame offers durability for those tough courses. 21-speed Shimano twist shifters with Shimano rear derailleur for smooth navigation of most any surface or incline. The front and rear alloy linear pull brakes provide precision stopping power. The wheels feature alloy rims for lightweight strength and all terrain tires. Plus, the high timber's quick release seat post lets you make easy height adjustments, so you can find your perfect fit.