Marin Donky Jr. 18" SE BikeLightweight and Ready to RideWhen your young rider is ready to get out and ride around the neighborhood or the local bike paths, they'll want a bike that can keep up with them. The Marin Donky Jr. 18" SE Bike is ready for adventure. It has an aluminum frame and a steel fork. The Donky Jr. features a freewheel and hand brakes, making it easier for them to transition to larger bikes as they grow. Smooth tread tires roll efficiently, while strong linear-pull brakes stop on the proverbial dime. The Donky Jr. features a steel rear-mount kickstand and a full-coverage polycarbonate chain cover. FeaturesLightweight aluminum frame with a steel forkSingle-speed drivetrain keeps things simple while ridingVee Tire Speedster tires roll smoothly on the pavementSteel rear mount kickstand so your young rider doesn't have to drop their bike on the groundFull-coverage polycarbonate chain cover keeps pant legs safeSPECIFICATIONSFrameAluminumForkSteelRear Shock-HeadsetFSA No. 88ShiftersSingle-SpeedFront DerailleurNopeRear DerailleurAlso NoCrankset3-Piece Aluminum Crank, 32TBottom BracketSealed Cartridge Bearing, Square TaperChainSingle Speed ChainCassette18-Tooth FreewheelBrakesTektro V-BrakeWheelsetMarin Aluminum, Steel HubsTiresVee Tire Co. Speedster 18 x 2. 0"HandlebarBMX Rise Bar, SteelStemAlloy BMXGrips/Bar TapeKids GripsSeatpostIntegrated w/ SaddleSeatclampSingle-BoltSaddleMarin KidsIntended UseTrail, PavementNote: Components are subject to change without notice. METRICINCHSizeOne SizeA: Seat Tube Length255B: Effective Top Tube415C: Stack368D: Reach295E: BB Height228F: BB Drop0G: Head Tube Length95H: Head Tube Angle70 degI: Seat Tube Angle72 degJ: Standover Height467K: Chainstay Length339L: Wheelbase793Crank Arm Length102 mmStem Length48 mmHandlebar Width450 mmSizeOne SizeA: Seat Tube Length10. 0B: Effective Top Tube16. 3C: Stack14. 5D: Reach11. 6E: BB Height9. 0F: BB Drop0. 0G: Head Tube Length3. 7H: Head Tube Angle70. 0 degI: Seat Tube Angle72. 0 degJ: Standover Height18. 4K: Chainstay Length13. 3L: Wheelbase31. 2Crank Arm Length102 mmStem Length48 mmHandlebar Width450 mm | Marin Bikes | DONKY JR 18" SE BIKE One Size BLACK GOLD