Siskiu D5
OverviewAbout the Polygon Siskiu D5
The Polygon Siskiu D5 is a mountain bike, built on a aluminium frame, listed at $1,399.99. An off-road bike for trails, with grippy tyres and trail-ready geometry.
SizingWhat size Siskiu D5 do I need?
Enter your height to see the size Polygon recommends.
| Size | Rider height | In feet |
|---|---|---|
| S | 155 to 165 cm | 5 ft 1 in to 5 ft 5 in |
| M | 165 to 175 cm | 5 ft 5 in to 5 ft 9 in |
| L | 175 to 185 cm | 5 ft 9 in to 6 ft 1 in |
Rider heights from Polygon's size chart. Height is a starting point: arm and leg length, flexibility and riding style all matter, so a test ride beats any chart. How bike sizing works.
SpecificationsWhat we know
- Brand
- Polygon
- Category
- Mountain
- Frame
- Aluminium
- Brakes
- Disc
- Frame sizes
- S, M, L
- Price
- $1,399.99, RRP AUD (BikesOnline)
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 M
- Stack
- 580.4 mm
- Reach
- 445 mm
- Stack/reach
- 1.30
- Head angle
- 67 deg
- Seat angle
- 75.5 deg
- Wheelbase
- 1157 mm
- Chainstay
- 432 mm
- BB drop
- 27 mm
- Standover
- 696 mm
Drivetrain & buildFull specification
- Groupset
- Shimano
- Shifting
- Mechanical
- Drive
- 1x
- Speeds
- 9
- Crank
- 32T
- Cassette
- Shimano, 11-46T
- Rear derailleur
- Shimano, Direct Attach
- Brakes
- Shimano MT200 Hydraulic Disc
- Rotors
- 180mm front, 160mm rear, Center-Lock
- Wheelset
- Alloy Double Wall
- Stock tyre
- 27.5x2.25
- Fork material
- SR Suntour XCM
- BB standard
- BSA Threaded, 68/73mm
- Thru-axle
- QR 100mm front, Boost QR 141mm rear
- Seatpost
- Entity Sport Alloy, 30.9x350mm
- Cockpit
- Polygon Sport Alloy handlebar and stem
- Saddle
- Void Saddle
SuspensionMTB detail
- Front travel
- 120 mm
- Rear travel
- 120 mm
- Fork
- SR Suntour XCM
- Shock
- SR Suntour Raidon LO Air
- Wheel config
- 27.5
- Dropper
- TranzX dropper post
- Discipline
- XC
Bike DNAWhat the numbers say
- Steering
- A 67 deg head angle points to balanced trail handling.
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 (polygonbikes.com product page + backfill 2026-09-27: polygonbikes.com), verified 2026-09-04. This is a specification analysis, not a physical ride review.
Where to buyStockist
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