Schwinn Ridge AL Men's Mountain Bike (26-Inch Wheels) Hydro formed aluminum mountain frame is lightweight for controlled, easy riding SR Suntour suspension fork smoothes the path Shimano EZ  Fire shifters for fast gear changes, 21speeds with Shimano TX-31 rear derailleur for quick shifts SR Suntour alloy 3 piece cranks offer optimal on or off-road gearing Alloy rims are strong and light, Schwinn Quality mountain saddle softens ride