Bayview Trail 20
OverviewAbout the Marin Bayview Trail 20
The Marin Bayview Trail 20 is a kids bike, built on an aluminium frame, listed at $549.99 at BikesOnline. A bike sized and geared for younger riders.
How it comparesThe Bayview Trail 20 against similarly priced bikes
- At $549.99 it sits in the upper part of the range: 57% of the 55 kids bikes we list cost less.
- Lowest gear ratio: 0.94, lower (easier on steep climbs) than the middle of similarly priced kids bikes (1.04).
- Gears at the back: 7-speed, about the same as similarly priced kids bikes (middle 7-speed).
- Stock tyre width: 54 mm, narrower than the middle of similarly priced kids bikes (57 mm).
Closest alternatives on price
same price
same price
$49 more
$50 less
Compare the Bayview Trail 20 with the two closest side by side
Compared with the 21 similar kids bikes on BikeFinder priced $400 to $750, using each bike's published specs and the price shown on its page.
SpecificationsWhat we know
- Brand
- Marin
- Category
- Kids
- Frame
- Aluminium
- Wheel size
- 20-inch
- Drivetrain
- Shimano Altus 1x7
- Brakes
- Disc
- Frame sizes
- One size
- Price
- $549.99 at BikesOnline, was $799.99. In stock, checked 3 Nov 2026.
Specs and pricing are listed in AUD and sourced from Australian retail listings. Confirm the current details and availability with the seller before purchase.
GeometrySize One size
- Stack
- 501.2 mm
- Head angle
- 67 deg
- Seat angle
- 75 deg
- Wheelbase
- 859.5 mm
- Chainstay
- 429.2 mm
- BB drop
- 30 mm
- Fork rake
- 40 mm
GearingRatios
Ratios are derived from the chainrings and cassette. They describe the gearing, not any rider's ability.
Drivetrain & buildFull specification
- Groupset
- Shimano Altus
- Shifting
- Mechanical
- Drive
- 1x
- Speeds
- 7
- Crank
- Marin Forged Alloy, 115mm
- Chainrings
- 30
- Cassette
- Shimano CSHG200, 12-32T, 7-Speed
- Rear derailleur
- Shimano Altus, 7-Speed
- Brakes
- Tektro MDM280 Mechanical Disc
- Rotors
- 160mm
- Wheelset
- Marin, Double Wall Alloy
- Stock tyre
- 20x2.125
- Fork material
- Steel
- Seatpost
- Marin Alloy, 27.2mm
- Cockpit
- Marin Alloy, 40mm / Marin Riser, 30mm Rise, 580mm Width
- Saddle
- Marin Kids MTB
Bike DNAWhat the numbers say
- Steering
- A 67 deg head angle points to stable, relaxed steering.
- Climbing
- Lowest ratio 0.94 is a low climbing gear that still handles steep pitches.
Derived from the published geometry and gearing above. It describes the numbers, not a ride test.
BikeFinder Data Profile: geometry and specification researched from published sources (BikesOnline product page (specification list and geometry table)), verified 2026-11-03. This is a specification analysis, not a physical ride review.
Where to buyStockist
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