Hidden Canyon 20"

2022 Hidden Canyon c1 Color 2022 Hidden Canyon c2 Color

See this bike in a different color:

  • Price: $389.00*
  • Frame: Aluminium
  • 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.


Ready to introduce the kids to the trails? Kids absolutely love the Marin Hidden Canyon 20” bike, a bike that’s guaranteed to kick-start their love of mountain biking.

Young guns love the Hidden Canyon’s fun ride and exciting style. Grownups love it for the lightweight aluminum frame, super safe disc brakes and sturdy components that will make the ‘Canyon the perfect hand-me-down for the next little shredder in the family!

To keep things simple we’ve made the Marin Hidden Canyon in just one size and with 20” wheels but in two colors, silver and blue or teal and pink. Made to suit kids 3’8” to 4’4”, it’s built with a Series 1 Aluminum frame and a steel riding fork.

Powerful Clark’s mechanical disc brakes will keep little shredders in control and a Shimano 7-speed drivetrain will help little legs tame the trails on the ups, downs, and everything in-between.


  • Frame

    Series 1 6061 Aluminum, 20” Wheels, IS Seatstay Disc Mounts, 135mm Dropouts

  • Front Suspension

    Steel Rigid Fork, 100mm Spacing, QR Lever

  • Rims

    Marin, Double Wall Alloy

  • Hub, Rear

    Forged Aluminum Alloy, 32H

  • Hub, Front

    Forged Aluminum Alloy, 32H

  • Spoke, Nipples

    14g Stainless Steel

  • Tires

    Multi-Surface, 20”x2.125”

  • Derailleur, Rear

    Shimano Tourney, 7-Speed

  • Derailleur, Front


  • Shift Lever

    Shimano Revo Twist 1x7-Speed

  • Crankset

    Forged Alloy, 36T, 140mm, Ring Guard

  • Bottom Bracket

    Sealed Cartridge Bearings, Square Taper

  • Chain

    KMC Z8

  • Cassette

    Shimano HG200, 7-Speed, 12-32T

  • Brake, Front

    Clark's CMD-23 Mechanical Disc, Shimano Pad Compatible, 160mm Rotor

  • Brake, Rear

    Clark's CMD-23 Mechanical Disc, Shimano Pad Compatible, 160mm Rotor

  • Brake Levers

    Kids Specific Short Reach Alloy Lever

  • Handlebar

    Marin Riser, 30mm Rise, 590mm Width

  • Stem

    Marin Alloy, 60mm

  • Grips

    Marin Dual Density

  • Headset

    FSA No.10P, Threadless

  • Seatpost

    Marin Alloy, 27.2mm

  • Saddle

    Marin Kids MTB

  • Pedals

    Kids Specific Nylon

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


Hidden Canyon 20" geometry diagram
Stack 439.39
Reach 297.66
Headtube Angle 70°
Headtube Length 105
Seattube Angle 73°
Seattube Length 308
Toptube Effective 432
BB Height 232
BB Drop 25
Chainstay 380
Wheelbase 862.79
Standover Height 511.66
Fork Offset 33
Seatpost Diameter 27.2
Handlebar Width 590
Stem Length 45
Crank Length 140

All lengths in millimeters


Aluminum Frame and Disc Brakes

Lightweight Series 1 6061 aluminum frames with replaceable derailleur hangers and disc brakes with size-appropriate brake levers for comfort and control.

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Marin Hidden Canyon and Shimano drivetrain detail.


The durable Shimano 7-speed drivetrain has the gear choices kid need to tackle trails in an easy to master package with a single front chainring and intuitive twist shifter.

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