Bike details
Overview
Key information split into simple groups.
Bike summary
-
-
Frame Aluminum -
Wheels 20" -
Groupset Tourney, Shimano -
Suspension Rigid -
Brakes Rim
Parts list
Components
Main components, grouped by system.
Bike components
Frame
Frame
Aluminum, 20" Kids
Suspension Fork
Steel Straight Blade, 1 1/8" Threadless Steerer Tube
Drivetrain
Rear Derailleur
Shimano Tourney 6-Speed
Shift Levers
Shimano Revo Twist Shift, 6-Speed
Crank
Alloy 3-Piece, 140mm; 36t chainring
Bottom Bracket
Sealed Cartridge Bearing, Square Taper
Chain
KMC HV500 6-speed
Pedals
Kids Specific Nylon
Wheels
Front Hub
Steel, 32H
Rear Hub
Steel, 32H
Rims
Marin Double Wall Aluminum w/ Machined Sidewalls
Tires
Marin/Vee Tire Speedster, 20"x2.0"
Brakes
Brake Levers
Tektro Kids Specific Short Reach Alloy
Cockpit
Stem
Marin Alloy
Handlebar
Marin Steel MTB
Grips
Kids Specific
Headset
FSA No. 8B, Threadless, 1 1/8"
Seat
Saddle
Marin Kids w/ Integrated Seat Post
Seatpost
27.2mm Steel, Integrated w/ Saddle
Fit data
Geometry
Numbers for sizing and ride feel.
About this model
Donky Jr. 20″ is part of the Marin Donky model. Marin released 21 bikes variations of this model so far. You can get a glimpse at all models from 2021, by clicking on this link.
Model range prices
Marin Donky Jr. 18″ LTD 2021 is the most economical model, with a starting price of 317$. Marin Donky Jr. 24″ LTD 2021 on the other hand costs 429$, and is the most expensive model.
Safety
Your safety should be the top priority when you go for a ride. In short, make sure that you always use a helmet, high visibility clothing, and proper lights when riding at night-time.
Average price for Youth bikes
Our math shows that the average cost of a dependable Youth bike is 278$. However, this doesn’t mean that if you spend less money on a Youth bike, you couldn’t get a decent one. As a general rule of thumb, you should always read reviews about the bike and its components before buying it to ensure you don’t pay too much.
When Marin released this model in 2021, its price was 399$. Doing a quick comparison, we notice that Donky Jr. 20″ price is 43.53% more expensive than the average cost of a Youth bike.
Donky Jr. 20″ components
Fork material
The fork is made out of steel, which tends to be more flexible than carbon forks in general. However, a carbon fork is considerably lighter.
Wheels
As for the wheels, Marin Donky Jr. 20″ 2021, has a 20″ aluminum model. This wheel size is used on bike models like BMX, children, or folding bikes. In conclusion, you can use them better on-road, and less on technical terrain.
Brakes
We ride faster and faster, so a good braking system is essential on a bike nowadays. The Donky Jr. 20″ comes with Rim brakes. Rim brakes are cheaper than hydraulic brakes, and also easier to maintain. However, they have problems in wet conditions.