2026 Polygon Siskiu T7 Bike

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Specifications

Product

Polygon Siskiu T7 Bike

Model Year

2026

Intended Use

Trail

Rider

Unisex

Sizes and Geometry

View Full Geometry

Size	SM	MD	LG	XL
Top Tube Length	568mm	595mm	619mm	644mm
Head Tube Angle	64.5°	64.5°	64.5°	64.5°
Head Tube Length	89mm	95mm	110mm	125mm
Seat Tube Angle	77°	77°	76°	77°
Seat Tube Length	390mm	400mm	415mm	430mm
Bottom Bracket Height	337.5mm (39mm drop)	337.5mm (39mm drop)	337.5mm (39mm drop)	337.5mm (39mm drop)
Chainstay Length	430mm	430mm	432mm	430mm
Wheelbase	1186mm	1214mm	1240mm	1267mm
Standover	704mm	705mm	711mm	723mm
Reach	440mm	465mm	485mm	505mm
Stack	604mm	609mm	622mm	636mm
Additional Info	All specifications listed are with 140mm travel fork

Sizes Additional Info

All specifications listed are with 140mm travel fork

View Full Geometry

Size	SM	MD	LG	XL
Top Tube Length	568mm	595mm	619mm	644mm
Head Tube Angle	64.5°	64.5°	64.5°	64.5°
Head Tube Length	89mm	95mm	110mm	125mm
Seat Tube Angle	77°	77°	76°	77°
Seat Tube Length	390mm	400mm	415mm	430mm
Bottom Bracket Height	337.5mm (39mm drop)	337.5mm (39mm drop)	337.5mm (39mm drop)	337.5mm (39mm drop)
Chainstay Length	430mm	430mm	432mm	430mm
Wheelbase	1186mm	1214mm	1240mm	1267mm
Standover	704mm	705mm	711mm	723mm
Reach	440mm	465mm	485mm	505mm
Stack	604mm	609mm	622mm	636mm
Additional Info	All specifications listed are with 140mm travel fork

Wheel Size

29"

Frame Material

Aluminum

Frame Material Details

ALX Trail alloy, one-piece linkage, molded chainstay and seatstayl protection

Rear Travel

140mm

Rear Shock

RockShox Deluxe Select+, 210mm length x 55mm stroke

Fork

RockShox Recon Silver RL, 32mm stanchions

Fork Travel

140mm

Head Tube Diameter

Tapered, 1.125" top, 1.5" bottom

Headset

FSA No.57E, ZS44/28.6 upper, ZS56/40 lower

Handlebar

Polygon Expert, 780mm width, 30mm rise, 9° sweep, 35mm clamp diameter

Stem

Polygon Expert, 35mm length, 0° rise, 35mm bar clamp

Grips

Brakes

Shimano MT420, 4-piston
Rotors: Shimano RT54, CENTER LOCK, 180mm

Brake Levers

Shimano MT420

Drivetrain

Shifters

Shimano Deore M6100, 12-speed

Front Derailleur

None

Rear Derailleur

Shimano Deore M6100, 12-speed, SGS cage

ISCG Tabs

None

Chainguide

None

Cranks

Shimano Deore M6120 Alloy, two-piece

Chainrings

Shimano Deore M6120, 32 tooth

Bottom Bracket

Shimano, 73mm English/BSA threaded

Pedals

Alloy flat, with replaceable pins

Chain

KMC X-12, 12-speed

Cassette

Shimano Deore M6100, 12-speed, 10-51 tooth

Rims

Polygon MT6 Alloy, 32 hole, tubeless ready

Hubs

Shimano TC500, 15mm x 110mm (Boost) front, 12mm x 148mm (Boost) rear with MICRO SPLINE driver

Spokes

Stainless steel, J-bend

Tires

Maxxis Dissector, 3C MaxxTerra compound, EXO+ casing, 29" x 2.4"

Saddle

Linc XTENT, CrMo rails

Seatpost

X-Fusion Manic LC dropper
Drop: 150mm (SM/MD), 170mm (LG/XL)

Seatpost Diameter

30.9mm

Seatpost Clamp

Single bolt

Rear Dropout / Hub Dimensions

12mm x 148mm (Boost)

Max. Tire Size

Bottle Cage Mounts

One inside front triangle, plus accessory mounts under top tube

Colors

Blue, Red

Warranty

5 years frame

Weight

Miscellaneous

• Linkage-driven single pivot "Faux Bar" rear suspension design
• Internal cable routing
• SRAM UDH (Universal Derailleur Hanger)

Price

$2,199.99

More Info

Polygon website

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Where To Buy
	Free U.S. shipping on everything. International shipping available. Some exclusions apply.	Browse available Bikes
	Free shipping on orders over $50 (contiguous U.S. only). International shipping available. Some exclusions apply.	Browse available Bikes
	Free shipping on orders over $50 (continental U.S. only). International shipping available. Some exclusions apply.	Browse available Bikes
	Free shipping on orders over $69 (continental U.S. only). International shipping available. Some exclusions apply.	Browse available Bikes