Kong Mountain Bike. Boys. 20 inch Wheel. BlueFat bikes are off road bicycles built to accommodate oversized tiresThe steel frame provides a springy quality that mitigates the roughness of bumpy terrainThe large wide tires provide improved traction and stability on loose groundThe suggested child rider height range for this bike is 48 To 60 inches tallThis frame is made for a boy or girl and has a seat tube length of 13 inchesA rear derailleur has seven speeds making climbing hills easierTwist shifters allow for smooth and easy gear changes while ridingThe threadless headset allows for adjustability for different rider heights and positionThe lightweight alloy rims keep the weight down and add speed and performanceRear front and rear disc brakes provide better braking in all weather conditionsConquer any road with ease with the 4.25 inch supersized all terrain knobby tiresFat bikes are the perfect bike for the mountain bike rider that wants to continue riding through all seasons in the dirt. mud. sand. and snow. is a globally recognized brand built for innovation and delivers one of the best riding experiences. especially on the mountain. The Kong fat bike was made to help conquer any off-road trail or terrain with ease with this steel-framed mountain bike style and its supersized all-terrain knobby tires. This bike ships ready to be assembled and is good for a child. boys and girls. between the ages of 5-8 years old. #8211; Fat bikes are off road bicycles built to accommodate oversized tires #8211; Fat mountain bikes are designed for low ground pressure to allow riding on soft. unstable terrain like dirt. sand. mud. and snow #8211; The steel frame provides a springy quality that mitigates the roughness of bumpy terrain #8211; The large wide tires provide improved traction and stability on loose ground #8211; The suggested child rider height range for this bike is 48 To 60 inches tall #8211; This frame is made for a boy or girl and has a seat tube length of 13 inches #8211; A rear derailleur has seven speeds making climbing hills easier #8211; Twist shifters allow for smooth and easy gear changes while riding #8211; The threadless headset allows for adjustability for different rider heights and position #8211; The lightweight alloy rims keep the weight down and add speed and performance #8211; Rear front and rear disc brakes provide better braking in all weather conditions #8211; Conquer any road with ease with the 4.25 inch supersized all terrain knobby tiresFeatures: Adjustable Height. Adjustable SeatBrand: MongooseBicycle Type: Fat Tire Bikes. Mountain BikesBicycle Wheel Diameter: 20#8243;Age Group: ChildNumber of Speeds: 7Color: MulticolorFrame Material: SteelBicycle Suspension Configuration: No SuspensionAccessories Included: Bike and Owners ManualCharacter: Fat Mountain BikeBicycle Tire Size: 20 X 4.0Bicycle Frame Size: 20 inMaximum Load Weight: 150 lbAssembled Product Dimensions (L x W x H): 58.00 x 24.00 x 33.00 Inches