Siskiu D6 LTD
OverviewAbout the Polygon Siskiu D6 LTD
The Polygon Siskiu D6 LTD is a mountain bike, built on an aluminium frame, listed at $1,799.99 at BikesOnline. An off-road bike for trails, with grippy tyres and trail-ready geometry.
How it comparesThe Siskiu D6 LTD against similarly priced bikes
- At $1,799.99 it costs less than 72% of the 234 mountain bikes we list.
- Head angle: 67.0 degrees, about the same as similarly priced full-suspension mountain bikes (middle 67.0 degrees).
- Front travel: 120 mm, less than the middle of similarly priced full-suspension mountain bikes (130 mm).
- Rear travel: 120 mm, about the same as similarly priced full-suspension mountain bikes (middle 120 mm).
- Lowest gear ratio: 0.50, lower (easier on steep climbs) than the middle of similarly priced full-suspension mountain bikes (0.65).
- Gears at the back: 10-speed, about the same as similarly priced full-suspension mountain bikes (middle 10-speed).
- Stock tyre width: 57 mm, narrower than the middle of similarly priced full-suspension mountain bikes (61 mm).
Closest alternatives on price
$50 less · 11-speed vs 10-speed
$100 more · 12-speed vs 10-speed · 130 mm fork vs 120 mm
$199 more · 140 mm fork vs 120 mm
$200 more · 150 mm fork vs 120 mm
Compare the Siskiu D6 LTD with the two closest side by side
Compared with the 9 similar mountain bikes on BikeFinder priced $1,250 to $2,450, using each bike's published specs and the price shown on its page.
SizingWhat size Siskiu D6 LTD do I need?
Enter your height to see the size Polygon recommends.
| Size | Rider height | In feet |
|---|---|---|
| S (27.5") | 155 to 165 cm | 5 ft 1 in to 5 ft 5 in |
| M (27.5") | 165 to 175 cm | 5 ft 5 in to 5 ft 9 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
- Wheel size
- 27.5-inch
- Drivetrain
- Shimano CUES 2x10
- Brakes
- Disc
- Frame sizes
- S (27.5"), M (27.5")
- Price
- $1,799.99 at BikesOnline, was $2,199.99. 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 M (27.5")
- 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
GearingRatios
Ratios are derived from the chainrings and cassette. They describe the gearing, not any rider's ability.
Drivetrain & buildFull specification
- Groupset
- Shimano CUES
- Shifting
- Mechanical
- Drive
- 2x
- Speeds
- 10
- Crank
- Prowheel 2-Piece Crankset, 170mm Crank Arms
- Chainrings
- 36/24
- Cassette
- Shimano CUES CS-LG300, 10-Speed, 11-48T
- Rear derailleur
- Shimano CUES RD-U6000, 10-Speed, Direct Attach
- Brakes
- Shimano BR-MT200 Hydraulic Disc, 2-Piston, Post Mount
- Rotors
- 180/160mm
- Wheelset
- Polygon MT6 Tubeless Ready Wheelset, Alloy Double Wall, 32H, Tubeless Tape Included
- Stock tyre
- 27.5x2.25
- BB standard
- BSA threaded
- Seatpost
- TranzX JD-YSP23KL Dropper post, 150mm Travel, 30.9x459mm, 0mm Offset
- Cockpit
- Polygon Sport Alloy Stem, 40mm Extension, 31.8mm Clamp, 7 deg Rise / Polygon Sport Alloy Handlebar, 760mm Width, 20mm Rise, 31.8mm Clamp, 9 deg Backsweep, 5 deg Upsweep
- Saddle
- Linc Void Saddle, Steel 7mm Rails
SuspensionMTB detail
- Front travel
- 120 mm
- Rear travel
- 120 mm
- Fork
- RockShox Recon Silver RL
- Shock
- SR Suntour Raidon LO Air
- Wheel config
- 27.5
- Dropper
- TranzX JD-YSP23KL Dropper post
- Dropper travel
- 150 mm
- Discipline
- Trail
- Suspension
- full suspension
Bike DNAWhat the numbers say
- Steering
- A 67 deg head angle points to balanced trail handling.
- Climbing
- Lowest ratio 0.5 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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