More about this Bike: Get away from it all and let loose on the trail with the Schwinn AL Comp. This lightweight aluminum mountain bike features hydro-formed tubing and front suspension for a durable, responsive ride. Adapting to changing terrain is easy with the 21-speed trigger shifters and rear derailleur, while front and rear mechanical disc brakes put you in control with all-condition stopping power. Plus, high-profile alloy rims add even more lightweight strength without weighing you down. Have a blast with the AL Comp. Enjoy the freedom of riding a Schwinn.