Norco's Roller 14” all-purpose mountain bikes are perfect for getting your 3 to 4-year-old youngster riding trails and having fun. Fits Sooner, Rides Longer. Short reach to stop on a dime. Top-tier components and touch points built for young riders. FRAME: Lightweight aluminum low standover frame FORK: Rigid alloy CRANKSET: Aluminum 3pc crank, 30T BOTTOM BRACKET: MTB style BB with sealed cartridge bearing CASSETTE: 16T sprocket CHAIN: KMC Z410A PEDALS: Super Jr. MTB Flats FRONT BRAKE: Alloy V-Brake with linear spring REAR BRAKE: Alloy V-Brake with linear spring BRAKE LEVERS: Jr. MTB alloy lever w/reach adjust HANDLEBAR: Alloy 31.8mm riser bar STEM: Alloy 35mm SEATPOST: Alloy 27.2mm HEADSET: Threadless 1-1/8” ball bearing type SADDLE: Norco Super Jr. Saddle GRIPS: Jr. MTB type, soft rubber SEATPOST CLAMP: Aluminum QR seatpost clamp TRAINING WHEELS: Not included, 110mm axle to accommodate training wheels FRONT HUB: Aluminum hub w/ball bearing REAR HUB: Aluminum hub w/ball bearing RIMS: Aluminum 14” MTB TIRES: 14” x 1.95” w/MTB tread SPOKES/: Steel UPC black