Novara Tractor 24" Boy's Bike (but girls can like blue too!) REI'S tough, trail-taming Novara Tractor 24 in. bike offers eager riders a 21-speed drivetrain and a suspension fork to ensure they're ready for trails, whoop-de-dos and more. Features Resilient aluminum frame is lightweight and durable, making it easy for kids to manage SR Suntour XCT JR suspension fork soaks up bumps and helps kids maintain control Smooth-shifting 21-speed drivetrain gives kids lots of gear choices to tackle changing terrain and gradients; shifting gears is as easy as a simple flick of the wrist Powerful, trustworthy Tektro linear-pull brakes are easy to use Versatile tread on the Kenda tires rolls smoothly on the pavement and delivers confident traction offroad Front down tube deflector helps to keep your kid somewhat clean and protected from flying mud Included kickstand makes it easy to prop the bike up when they venture off Technical specs Frame: 6061 aluminum Front Suspension Fork: SR Suntour XCT Junior, 40mm travel Crankset: Alloy, 42/34/24 Shifters: Shimano Revo twister Front Derailleur: Shimano TX32 Rear Derailleur: Shimano TZ-50 Rear Cogs: Shimano 14-28, 7-speed Number of Gears: 21 gear(s) Rim Brakes: Tektro linear pull Brake Levers: Tektro Junior alloy Rims: Ace alloy Front Hub: Steel Rear Hub: Steel Wheel Size: 24 inches Tires: Kenda K-831 24x1.95 Handlebar Shape Handlebar: Steel riser Stem: Alloy threadless Seat Post: Alloy Saddle: Velo Jr. Pedals: Wellgo resin platform Headset: Semi cartridge threadless Chain: KMC Weight: 28.5 pounds