Get ready for the ride of your life on the GMC Boy"s Denali 24 Road Bike in blue and yellow. This 21-speed road bike with a 17" lightweight aluminum frame is ready for any journey. Its specialized gear shift system and caliper brakes put you in control, and it adjustable seat gives you maximum comfort. Charge any hill with its high tech derailleurs, and enjoy the boys bike"s sleek yellow and blue styling. For ages 18 and up. 6 month limited manufacturers warranty.