Marin Bikes

Donky Jr. 20"

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MY21 dj 20 se wh2920 MY21 dj 20 se bk2920

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  • Original price : $409.00
  • Sale: Price: $299.00*
  • Wheel Size: 20"
  • Frame: Aluminum
  • Size Range: One Size
  • Manufacturer’s suggested retail price may not include additional shipping or preparation charges. Please contact your local Marin dealer for a quote.

Step up from the Donky Jr 18", and see the spec progress, just like the young rider in your life. The Donky Jr. 20" is built around a lightweight aluminum alloy frame and stout steel fork, but with the addition of a dependable and smooth-shifting Shimano 6-speed drivetrain - perfect for a growing rider who is able to get out on longer rides.

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Specifications

  • Frame

    Aluminum, 20" Kids

  • Fork

    Steel Straight Blade, 1 1/8" Threadless Steerer Tube

  • Rims

    Marin Double Wall Aluminum w/ Machined Sidewalls

  • Hub, Rear

    Steel, 32H

  • Hub, Front

    Steel, 32H

  • Spoke, Nipples

    Black Stainless Steel 14G Spokes, Brass Nipples

  • Tires

    Marin/Vee Tire Speedster, 20"x2.0"

  • Derailleur, Rear

    Shimano Tourney 6-Speed

  • Shift Lever

    Shimano Revo Twist Shift, 6-Speed

  • Crankset

    Alloy 3-Piece, 140mm; 36t chainring

  • Bottom Bracket

    Sealed Cartridge Bearing, Square Taper

  • Chain

    KMC HV500 6-speed

  • Rear Freewheel

    Shimano 6-speed, 14-28t

  • Brake, Front

    Tektro Linear Pull

  • Brake, Rear

    Tektro Linear Pull

  • Brake Levers

    Tektro Kids Specific Short Reach Alloy

  • Handlebar

    Marin Steel MTB

  • Stem

    Marin Alloy

  • Grips

    Kids Specific

  • Headset

    FSA No. 8B, Threadless, 1 1/8"

  • Seatpost

    27.2mm Steel, Integrated w/ Saddle

  • Saddle

    Marin Kids w/ Integrated Seat Post

  • Pedals

    Kids Specific Nylon

  • Extras

    Rear-Mount Steel Kickstand, Rear Derailleur Guard

Specifications, pricing, and availability are subject to change without notice.

Geometry

Donky Jr. 20" geometry diagram
ONE SIZE
Stack 419
Reach 295
Headtube Angle 69
Headtube Length 95
Seattube Angle 72
Seattube Length 280
Toptube Effective 431
BB Height 253
BB Drop 0
Chainstay 359
Wheelbase 842
Standover Height 525
Fork Offset 25
Seatpost Diameter 27.2
Handlebar Width 580
Stem Length 60
Crank Length 140

All lengths in millimeters

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