Marin Coast Trail 20 1 2025 Pink/Grey 20" Kids Bike
10% of free accessories
Get 10% of free accessories when you
Excludes discounted bikes, ex-demo bikes and Cyclescheme.
We have done our best to sufficiently estimate demand. Please contact us if you have a question or wish to check availability.
Details
Step up from the Coast Trail 16”, and see the spec progress, just like the young rider in your life.
The Coast Trail 20” 1 is built around a lightweight aluminum alloy frame and fork, but with the addition of a simple and dependable single speed drivetrain – perfect for a growing rider who is able to get out for the ride to school, to the park or out on your neighborhood paths.
Specification
Frame | Series 1 Lightweight Aluminum, Low Standover, 20” Wheels, Single Speed, Rim Brake |
Fork | Series 1 Aluminum , Rim brake |
Rims | Aluminum, CNC Brake Surface |
Rear Hub | Forged Aluminum Alloy, 28H |
Front Hub | Forged Aluminum Alloy, 28H |
Spokes | 14g Stainless Steel |
Tyres | Marin X Vee Tire Co. Speedster, 20×2.0” |
Crankset | Forged Alloy, 34T, 140mm, Ring Guard |
Bottom Bracket | Sealed Cartridge Bearings, Square Taper |
Chain | KMC 1-Speed |
Freewheel | Single Speed Freewheel, 16T |
Front Brakes | Linear Pull, Alloy |
Rear Brakes | Linear Pull, Alloy |
Brake Levers | Kid’s Specific Short Reach Alloy Lever |
Handlebar | Marin Riser, 50mm Rise, 580mm Width, 19mm OD Grip Section |
Stem | Alloy, 40mm |
Grips | Single Densitiy, Thin Diameter Grip |
Headset | Threadless |
Seatpost | Aluminum, 27.2mm, Integrated Saddle/Post |
Saddle | Marin 20” Integrated Saddle/Post |
Pedals | Kids Specific Nylon Pedal |
Extras | Full Chaincase |
Specifications are subject to change without notice
Size Guide
Frame Size | Minimum Height | Maximum Height |
One Size | 104cm (3’5”) | 139cm (4’7”) |
We have developed our size guide from our selling experience and it may differ from the manufacturers guide. Please note, this is only a guide and if you have any concerns over sizing please get in contact
Geometry

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Frame Size | One Size |
A – Stack | 407 |
B – Reach | 299 |
C – Head Tube Angle | 69° |
D – Head Tube Length | 100 |
E – Seat Tube Angle | 73° |
F – Seat Tube Length | 280 |
G – Top Tube Effective | 424 |
H – BB Height | 227 |
I – BB Drop | 30 |
J – Chain Stay | 355 |
K – Wheel Base | 840 |
L – Stand Over Height | 450 |
M – ForkOffset | 40 |
SeatPost Diameter | 27.2 |
Want to compare the size of your current bike to this one? Read our Reach and Stack guide here.
Manufacturer | Marin |
---|---|
RRP | No |