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Description

LIGHTWEIGHT

Featuring a lightweight series 1 aluminium frame and forks, the Hidden Canyon ensures your young riders won't be held back by a heavy bike. Lighter means that it's easier to control and balance. The weight savings go beyond the frame; every component spec offers the best balance of weight to durability.

KIDS SPEC

Kids are smaller all over, so Marin took that into consideration when designing the Hidden Canyon; handlebars and grips are of smaller diameter, brake levers are specifically designed for smaller hands, and even the pedals and saddles are proportionally smaller. This helps kids maintain comfort and control.

DISC BRAKES

Specially designed for young riders with short-reach mechanical levers for small hands, Power CX7 disc brakes are made from durable materials that provide powerful and consistent braking in all conditions.

7-SPEED

Altus 7-Speed gears offer the range and durability that your kids need. They are also as tough as your little one and are easy to maintain. They feature a 30T chainring and a 12-28T cassette for loads of range.

Components

FRAMESET
FRAME
Series 1 6061 Aluminum, 20" Wheels, IS Seatstay Disc Mounts, 135mm Dropouts
SUSPENSION
FORK
Steel Rigid Fork, 100mm Spacing, QR Lever
DRIVETRAIN
REAR DERAILLEUR
Shimano Tourney, 7-Speed
SHIFTER
Shimano Revo Twist 1x7-Speed
CRANK
Forged Alloy, 30T, 140mm, Ring Guard
CASSETTE
Shimano HG-20 7-Speed, 12-28T
CHAIN
KMC Z50 7 Speed
BRAKES
FRONT BRAKE
Power CX7 Mechanical Disc, Shimano Pad Compatible, 160mm Rotors
REAR BRAKE
Power CX7 Mechanical Disc, Shimano Pad Compatible, 160mm Rotors
WHEELS
REAR HUB
Formula
RIM
Double Wall Alloy Rims
TYRE
Multi Surface, 20" x 2.125"
CONTACT POINTS
HANDLEBAR
Marin Riser, 30mm Rise, 590mm Width
SADDLE
Marin Kids MTB
SEATPOST
Marin Alloy, 27.2mm
STEM
Marin Alloy, 60mm
PEDALS
Kids Specific Nylon Pedal
WEIGHT
BIKE WEIGHT
11kg

Geometry

geo-hardtail

Rider Height 115 - 130 cm
(A) Stack 439
(B) Reach 298
(C) Head Tube Angle 70°
(D) Head Tube Length 105
(E) Seat Tube Angle 73°
(F) Seat Tube Length 308
(G) Top Tube Effective 432
(H) Bottom Bracket Height 232
(I) Bottom Bracket Offset 25
(J) Chainstay 380
(K) Wheel Base 863
(L) Standover Height 512
(M) Fork Offset 33
   
* All lengths in mm  

Assembly

Get ready to hit the road with your new bike! It’ll arrive almost ready to go, but you’ll need to do a quick setup first. Don’t worry, we’ve popped all the tools you’ll need right in the box.

If you’re a bike-building pro: You’ll be done in just 10-15 minutes.
Got a knack for fixing things? Give it 15-25 minutes.
New to the DIY world? Take your time, around 30-40 minutes, and you’ll get there!

Need some visual aids? We’ve got you covered! Just click on our step-by-step video guide below for a smooth setup. Happy cycling!

Step 1

Unboxing

Step 2

Seat Height

Step 3

Inflate Tyres

Step 4

Handlebar- Quill Stem

Step 5

Vintage Mudguard

Step 6

Front Wheel- Nut Axle

Step 7

Adjust Caliper Brakes

Step 8

Install Pedals

Step 9

Front Basket

Step 10

Vintage Rear Rack

Step 11

Adjust a Rear Derailleur

Step 12

Pre ride Check

Customer Reviews
5.0 Based on 4 Reviews
5 ★
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DL
05/02/2025
Daniel L.
Australia

Excellent service

Our bike arrived in no time. Buy, have it shipped to you with a set of tools in the box and just about ready to go, perfect.

BR
03/08/2023
Brett R.
US

Marin hidden canyon

My experience with this company and the new bike couldn’t be any better!! Highly recommended

CK
01/31/2022
Charles K.
AU

Very impressed overall

First off, the packaging and shipping was perfect. The bike turned up super quick and had packaging that was way better quality than other direct to consumer bikes i've bought. The bike is really good value and perfect for a little 5 year old getting started on the trails.

BikesOnline Australia Marin Hidden Canyon 20 - Kids Mountain Bike Review
RY
08/16/2021
Ryan Y.
AU

Great experience

Super fast next day delivery was awesome. I needed to adjust the disc brakes on the front and the back as they were rubbing against the pads. Would be nice to include links to videos showing how to resolve common setup problems. I eventually figured it out after some trial and error. My 8 year old loves his new bike!

BikesOnline Australia Marin Hidden Canyon 20 - Kids Mountain Bike Review