Siskiu D24
OverviewAbout the Polygon Siskiu D24
The Polygon Siskiu D24 is a kids bike, built on an aluminium frame, listed at $1,699.99 at BikesOnline. A bike sized and geared for younger riders.
How it comparesThe Siskiu D24 against similarly priced bikes
- At $1,699.99 it sits in the upper part of the range: 96% of the 55 kids bikes we list cost less.
- Gears at the back: 8-speed, fewer than the middle of similarly priced kids bikes (10-speed).
- Stock tyre width: 57 mm, narrower than the middle of similarly priced kids bikes (61 mm).
Closest alternatives on price
$100 less
$100 less · 11-speed vs 8-speed
$201 less
$400 less · 9-speed vs 8-speed · 60 mm fork vs 120 mm
Compare the Siskiu D24 with the two closest side by side
Compared with the 6 similar kids bikes on BikeFinder priced $1,200 to $2,300, using each bike's published specs and the price shown on its page.
SpecificationsWhat we know
- Brand
- Polygon
- Model year
- 2025
- Category
- Kids
- Frame
- Aluminium
- Wheel size
- 24-inch
- Drivetrain
- microSHIFT 1x8
- Brakes
- Disc
- Frame sizes
- One size
- Price
- $1,699.99 at BikesOnline, was $1,999.99. 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
- 534.1 mm
- Reach
- 350 mm
- Stack/reach
- 1.53
- Head angle
- 66 deg
- Seat angle
- 75 deg
- Wheelbase
- 1028.2 mm
- Chainstay
- 400 mm
- BB drop
- 10 mm
- Standover
- 598.4 mm
GearingRatios
Ratios are derived from the chainrings and cassette. They describe the gearing, not any rider's ability.
Drivetrain & buildFull specification
- Groupset
- microSHIFT
- Shifting
- Mechanical
- Drive
- 1x
- Speeds
- 8
- Crank
- Prowheel C10Y, 140mm
- Chainrings
- 30
- Cassette
- MicroSHIFT CS-H083 Cassette, 8-Speed, 12 to 42T
- Rear derailleur
- MicroSHIFT RD-M5185M, 8-Speed
- Brakes
- Tektro HD-J3120 Hydraulic Disc, 2-piston
- Rotors
- 160mm
- Wheelset
- Polygon MT6 Alloy Double Wall Rim, 23.3mm Internal Width, 32H
- Stock tyre
- 24x2.25
- Fork material
- RST Aerial Air Fork suspension fork
- BB standard
- BSA threaded
- Seatpost
- Polygon Sport Seatpost, 30.9 x 250mm, 16mm Offset, 34.9mm QR Seat Clamp
- Cockpit
- Polygon Sport Stem, 45mm Extension, 31.8mm Clamp, 3 deg Rise / Polygon Sport Handlebar, 640mm Width, 31.8mm Bore, 20mm Rise, 6 deg Bend
- Saddle
- Black Saddle, Steel Rails 7mm
SuspensionMTB detail
- Front travel
- 120 mm
- Rear travel
- 120 mm
- Fork
- RST Aerial Air Fork
- Shock
- SR Suntour Raidon R Air Shock
- Suspension
- full suspension
Bike DNAWhat the numbers say
- Position
- Stack-to-reach 1.53 gives a balanced, endurance riding position.
- Steering
- A 66 deg head angle points to stable, relaxed steering.
- Climbing
- Lowest ratio 0.71 is a very low climbing gear for steep or loaded climbs.
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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