Quick and agile riding with the 18.5-inch aluminum fitness frame and rigid fork, with 700c wheels fit riders 5'6" to 5'10" height 24-speed shifter and brake lever combo provides precise shifting, you can trust for years of smooth shifting Mechanical disc brakes deliver superior stopping power, and sport tires provide fast but comfortable riding Hybrid bike with flat style handlebar, double density ergonomic grips, and fitness saddle offer extra comfort at touch points Arrives partially assembled, will require tools, Philips head screwdriver, Allen wrench 4-8mm, adjustable wrench, pair of pliers with cable cutting ability