Marin Coast Trail 20 7 2025 (silver)
Step up from the Coast Trail 20 and follow the progress in specifications – just like the young rider in your life.
Step up from the Coast Trail 16" and follow the progress in equipment – just like the young rider in your life. The Coast Trail 20" 7 is built on a lightweight aluminium alloy frame and fork and is also equipped with a reliable and smooth-shifting 7-speed Shimano drivetrain – ideal for a growing rider who can already manage the way to school, to the park or a ride along local trails.
Geometry

| 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 Chainstay | 355 |
| K Wheelbase | 840 |
| L Standover height | 450 |
| M Fork offset | 40 |
| Seatpost diameter | 27.2 |
| Handlebar width | None |
| Stem length | None |
| Crank length | None |
All lengths in millimetres
Technology
LIGHTWEIGHT ALUMINIUM FRAMES & FORKS
Coast Trail models are all built upon lightweight Series 1 aluminium frames and aluminium forks. This ensures that your young rider wont be held back by a heavy bike, as a lighter bike is easier to control and balance. The weight savings go beyond the frame, and we ensured that every component specified offers the best balance of weight to durability.
KIDS-SIZED COMPONENTS
Kids are smaller all over, so our designers took that into consideration when designing the Coast Trails. Handlebars and grips are of smaller diameter than found on adult bikes, brake levers are specifically designed for smaller hands, and even the pedals and saddles are proportionally smaller. This helps kids maintain comfort and control while they are still developing their skills as riders.
SMOOTH-ROLLING 2.0" TIRES
Smooth-rolling Marin x Vee Tire 2.0" wide tyres are used on all Coast Trail models, with inverted tread to provide additional grip when needed.
Additional information
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| frame: | Series 1 Lightweight Aluminum, Low Standover, 20 Wheels, Replaceable Derailleur |
| pedals: | Kids Specific Nylon Pedal |
| front wheel / hub: | Forged Aluminum Alloy, 28H / Aluminum, CNC Brake Surface |
| rear wheel / hub: | Forged Aluminum Alloy, 28H / Aluminum, CNC Brake Surface |
| tires: | Marin X Vee Tire Co. Speedster, 20x2.0 |
| rear derailleur: | Shimano Tourney, 7-Speed |
| saddle: | Marin 20 Integrated Saddle/Post |
| chain: | KMC 7-Speed |
| fork: | Series 1 Aluminum , Rim brake |
| brake levers: | Kid's Specific Short Reach Alloy Lever |
| brakes: | Linear Pull, Alloy / Linear Pull, Alloy |
| shifters: | Microshift TS39 Short-Reach 7-Speed |
| cranks: | Forged Alloy, 34T, 140mm, Ring Guard / Sealed Cartridge Bearings, Square Taper |
| cassette: | SunRace, 7-Speed, 11-34T |
| EAN: | 0843346127419 |
| seatpost: | Aluminum, 27.2mm, Integrated Saddle/Post |
| model year: | 2025 |


















































































































































































































































































































































































































































































