Alcatraz 24
OverviewAbout the Marin Alcatraz 24
The Marin Alcatraz 24 is a kids bike, built on an aluminium frame, listed at $899.99 at BikesOnline. A bike sized and geared for younger riders.
How it comparesThe Alcatraz 24 against similarly priced bikes
- At $899.99 it sits in the upper part of the range: 78% of the 55 kids bikes we list cost less.
- Stock tyre width: 57 mm, about the same as similarly priced kids bikes (middle 57 mm).
Closest alternatives on price
same price
same price
$25 more · hydraulic brakes
$75 more · hydraulic brakes
Compare the Alcatraz 24 with the two closest side by side
Compared with the 12 similar kids bikes on BikeFinder priced $650 to $1,200, using each bike's published specs and the price shown on its page.
SpecificationsWhat we know
- Brand
- Marin
- Model year
- 2025
- Category
- Kids
- Frame
- Aluminium
- Wheel size
- 24-inch
- Drivetrain
- Single speed
- Brakes
- Disc
- Frame sizes
- One size
- Price
- $899.99 at BikesOnline, was $1,399.99. 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
- 525 mm
- Reach
- 360 mm
- Stack/reach
- 1.46
- Head angle
- 69 deg
- Seat angle
- 69 deg
- Chainstay
- 369 mm
- Fork rake
- 42 mm
Drivetrain & buildFull specification
- Shifting
- Mechanical
- Drive
- 1x
- Crank
- Marin Forged Alloy, Alloy 32T DM Chainring, 155mm Length
- Chainrings
- 32
- Cassette
- 14T Single Speed Cog
- Brakes
- Tektro MD-M280 Mechanical Disc 160mm Rotor
- Rotors
- 160mm
- Wheelset
- Marin Custom Extrusion, 27mm Inner, Pinned Joint
- Rim internal width
- 27 mm
- Stock tyre
- 24x2.25
- BB standard
- Threaded
- Seatpost
- Marin Alloy, 30.9mm
- Cockpit
- Marin 3D Forged Alloy, 31.8mm clamp, 35mm extension / Marin Riser, 6061 Double Butted Aluminium, 31.8mm at centre bulge, 38mm Rise, 700mm Width, 4 deg Up, 9 deg Back
- Saddle
- Marin DJ Saddle
Bike DNAWhat the numbers say
- Position
- Stack-to-reach 1.46 gives a balanced, endurance riding position.
- Steering
- A 69 deg head angle points to stable, relaxed steering.
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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