Home / Mountain bikes / Polygon / Siskiu T7
Mountain
Polygon

Siskiu T7

Aluminium29-inchMountain
$2,499.99
at BikesOnline, was $3,099.99. In stock, checked 3 Nov 2026.
All Polygon prices
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AluminiumFrame
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29-inchWheel size
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Shimano Deore 1x12Drivetrain
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DiscBrakes
SizesSMLXLWhich size?

OverviewAbout the Polygon Siskiu T7

The Polygon Siskiu T7 is a mountain bike, built on an aluminium frame, listed at $2,499.99 at BikesOnline. An off-road bike for trails, with grippy tyres and trail-ready geometry.

aluminiumdisc brakefull suspensiontrail

How it comparesThe Siskiu T7 against similarly priced bikes

  • At $2,499.99 it costs less than 63% of the 223 mountain bikes we list.
  • Head angle: 65.0 degrees, about the same as similarly priced full-suspension mountain bikes (middle 65.3 degrees).
  • Front travel: 140 mm, about the same as similarly priced full-suspension mountain bikes (middle 140 mm).
  • Rear travel: 135 mm, about the same as similarly priced full-suspension mountain bikes (middle 133 mm).
  • Reach (size M): 465 mm, about the same as similarly priced full-suspension mountain bikes (middle 460 mm).
  • Lowest gear ratio: 0.63, about the same as similarly priced full-suspension mountain bikes (middle 0.64).
  • Gears at the back: 12-speed, more than the middle of similarly priced full-suspension mountain bikes (11-speed).

Closest alternatives on price

Compare the Siskiu T7 with the two closest side by side

Compared with the 18 similar mountain bikes on BikeFinder priced $1,750 to $3,350, using each bike's published specs and the price shown on its page.

SizingWhat size Siskiu T7 do I need?

cm

Enter your height to see the size Polygon recommends.

Polygon Siskiu T7 size chart
SizeRider heightIn feet
S158 to 168 cm5 ft 2 in to 5 ft 6 in
M168 to 178 cm5 ft 6 in to 5 ft 10 in
L177 to 185 cm5 ft 10 in to 6 ft 1 in
XL185 to 195 cm6 ft 1 in to 6 ft 5 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
29-inch
Drivetrain
Shimano Deore 1x12
Brakes
Disc
Frame sizes
S, M, L, XL
Price
$2,499.99 at BikesOnline, was $3,099.99. 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

REACH465STACK609WHEELBASE1,214CHAINSTAY43065.0°77.0°
Polygon Siskiu T7, size M. Published geometry, drawn to scale (BB drop or fork offset not published, typical value used).
Stack
609 mm
Reach
465 mm
Stack/reach
1.31
Head angle
65 deg
Seat angle
77 deg
Wheelbase
1214 mm
Chainstay
430 mm
BB drop
39 mm
Standover
705 mm

GearingRatios

0.63lowest (climbing)
3.20highest (speed)
Very low climbing gear

Ratios are derived from the chainrings and cassette. They describe the gearing, not any rider's ability.

Drivetrain & buildFull specification

Groupset
Shimano Deore
Shifting
Mechanical
Drive
1x
Speeds
12
Crank
Shimano FC-M6120-1 Boost
Chainrings
32
Cassette
Shimano Deore CS-M6100-12, 10 to 51T, 12-Speed, Microspline
Rear derailleur
Shimano Deore RD-M6100-SGS, Direct attach, 12-Speed
Brakes
Shimano BR-MT420, 4-Piston, Hydraulic Disc
Rotors
180mm
Wheelset
Polygon MT6 Alloy, 29mm Internal Width, 32H, Hookless, Tubeless Tape Installed
Rim internal width
29 mm
Stock tyre
29x2.40
Tubeless
Yes
BB standard
Threaded
Seatpost
X-Fusion Manic LC, Lightweight Composite Remote Lever, 150mm Travel (S, M) / 170mm Travel (L, XL), 30.9mm Diameter, 429mm (S, M) / 473mm (L, XL)
Cockpit
Polygon Expert, 35mm Extension, 0 deg Rise/Drop, 35mm Clamp / Polygon Expert, 780mm Width, 30mm Rise, 9 deg Backsweep, 35mm Bar Bore
Saddle
LINC Xtend, Cr-Mo Rails ( 7mm)
UDH
Yes

SuspensionMTB detail

Front travel
140 mm
Rear travel
135 mm
Fork
RockShox Recon Silver RL
Shock
RockShox Deluxe Select Plus
Wheel config
29
Dropper
X-Fusion Manic LC
Dropper travel
150 mm
Discipline
Trail
Suspension
full suspension

Bike DNAWhat the numbers say

Steering
A 65 deg head angle points to slack, trail and enduro handling.
Climbing
Lowest ratio 0.63 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

BikesOnline
In stock, checked 3 Nov 2026
$2,499.99
Check size and stock →

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