Marin Donky Jr. 20" 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. 20" SE Bike is ready for adventure. It has an aluminum frame and a steel fork. The Donky Jr. features a 6-speed drivetrain 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. also features a steel rear-mount kickstand. FeaturesLightweight aluminum frame with a steel fork6-speed drivetrain with an easy twist-grip shifterVee Tire Speedster tires roll smoothly on the pavementRear-mount kickstand for easy storageRear derailleur guard keeps your rear derailleur protectedSPECIFICATIONSFrameAluminumForkSteelRear Shock-HeadsetFSA No. 8BShiftersShimano Revo Twist Shift, 6-SpeedFront DerailleurNopeRear DerailleurShimano TourneyCrankset3-Piece Aluminum Crank, 36TBottom BracketSealed Cartridge Bearing, Square TaperChain6-SpeedCassetteShimano 6-Speed, 14-28TBrakesTektro V-BrakeWheelsetMarin Double-Wall Aluminum, Steel HubsTiresVee Tire Co. Speedster 20 x 2. 0"HandlebarMarin Steel MTBStemMarin AlloyGrips/Bar TapeKids GripsSeatpostIntegrated w/ SaddleSeatclampSingle-BoltSaddleMarin KidsIntended UseTrail, PavementNote: Components are subject to change without notice. METRICINCHMarin Donky Jr. Size24201816A: Seat Tube Length310280255230B: Effective Top Tube468431415400C: Stack494419368346D: Reach317295295287E: BB Height269253228205F: BB Drop35000G: Head Tube Length130959595H: Head Tube Angle69 deg69 deg70 deg72 degI: Seat Tube Angle73 deg72 deg72 deg72 degJ: Standover Height588525467420K: Chainstay Length405359339296L: Wheelbase939842793721Crank Arm Length152 mm140 mm102 mm102 mmStem Length60 mm60 mm48 mm48 mmHandlebar Width580 mm580 mm450 mm450 mmMarin Donky Jr. Size24201816A: Seat Tube Length12. 211. 010. 09. 1B: Effective Top Tube18. 417. 016. 315. 7C: Stack19. 416. 514. 513. 6D: Reach12. 511. 611. 611. 3E: BB Height10. 610. 09. 08. 1F: BB Drop1. 40. 00. 00. 0G: Head Tube Length5. 13. 73. 73. 7H: Head Tube Angle69. 0 deg69. 0 deg70. 0 deg72. 0 degI: Seat Tube Angle73. 0 deg72. 0 deg72. 0 deg72. 0 degJ: Standover Height23. 120. 718. 416. 5K: Chainstay Length15. 914. 113. 311. 7L: Wheelbase37. 033. 131. 228. 4Crank Arm Length152 mm140 mm102 mm102 mmStem Length60 mm60 mm48 mm48 mmHandlebar Width580 mm580 mm450 mm450 mm | Marin Bikes | DONKY JR 20" SE BIKE One Size WH SILVER