Merax Finiss 26" Aluminum 21 Speed Mountain Bike with Disc Brakes Lightweight Heat Treated Aluminum 19" Mountain Frame 26" Double Wall Aluminum Rims Wheels for Smooth Rolling Shimano 21-speed Derailleurs and Shifters for Fast and Reliable Shifting Front and Rear Mechanical Disc Brakes Suspension Fork 80mm Travel provides smooth rides on bumpy surfaces and increases control Rotate the fork a full 180-degree before assembling the front wheel (after proper rotation, the brake will be at the front of the bike)