Hidden Canyon
Origin
Marin Bikes was founded in 1986 in Marin County, California — the birthplace of mountain biking, where the first purpose-built off-road bikes were hacked together on Mount Tamalpais. That heritage is the whole point of the brand's youth range: rather than treating kids' bikes as toys, Marin builds them like scaled-down versions of its adult trail hardtails. The Hidden Canyon is the entry rung of that ladder, aimed at the moment a child graduates from a coaster-brake starter bike to a real geared machine with hand brakes. It has run for years as Marin's 20"-wheel kids' MTB (with a 24" companion trim), consistently praised in kids'-bike-weight comparisons for undercutting heavier big-box rivals like the Diamondback Cobra while carrying proper components.
Specifications
- Frame
- Series 1 6061 Aluminium (20" model), with IS seatstay disc mounts and replaceable derailleur hanger
- Weight
- kg
- Drivetrain
- 20": Shimano Tourney 1x7, Revo twist shifter, forged alloy 36T crank, CS-HG200 12-32T. 24": Shimano Tourney 8-speed w/ Microshift shifter
- Brakes
- 20": Clark's CMD-23 mechanical disc, 160mm rotors, kids short-reach levers. 24": alloy linear-pull (rim) brakes
- Wheels
- 20": Marin double-wall alloy rims, 32h forged alloy hubs. 24": alloy rims, 14g stainless spokes
The verdict
- Genuinely light for a kids' bike (~24 lb stock, lighter than most big-box rivals) — easier for a small rider to handle.
- Real mechanical disc brakes with short-reach levers on the 20" — strong, confidence-inspiring stopping for little hands.
- Aluminium frame + quality components make it durable, rust-resistant and an excellent hand-me-down.
- Tallish standover on the 20" frame — some smaller riders at the low end of the range struggle to straddle it.
- Rigid fork on the 20" (fine on purpose, but no bump absorption for rougher trails).
- Still heavy versus boutique kids' bikes (Woom, Early Rider) that cost far more but shave several pounds.
Generations
20" era (2019-2025)
- The flagship configuration. US MSRP rose from ~$369 (2019) to ~$499 (2025); specs stayed largely stable, disc brakes throughout.
- Brakes
- Mechanical disc
24" companion trim
- A size-up trim that is spec'd differently: suspension fork + rim brakes + 8-speed. Do not assume 20" specs carry over.
- Brakes
- Linear-pull rim
Versions & builds
Every official build side by side — differences highlighted.
| Spec | CurrentHidden Canyon 20" | CurrentHidden Canyon 24" | Hidden Canyon 20" (early) |
|---|---|---|---|
| Year | 2024 | 2024 | 2020 |
| Frame | Series 1 6061 aluminium | Series 1 aluminium, low standover | Series 1 6061 aluminium |
| Drivetrain | Shimano Tourney 1x7 twist-shift | Shimano Tourney 8-speed, Microshift shifter | Shimano Tourney 1x7 |
| Brakes | Clark's mechanical disc, 160mm | Alloy linear-pull (rim) | Mechanical disc |
| MSRP | €499 | €447 | €389 |
| Purpose | Balanced | Balanced | Value |
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