2025 Polygon Siskiu TE Bosch E-Bike

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Polygon

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Specifications

Product

Polygon Siskiu TE Bosch E-Bike

Model Year

2025

Intended Use

Trail

Enduro / All-Mountain

Rider

Unisex

Sizes and Geometry

SM 29" (Low, High)

MD 29" (Low, High)

LG 29" (Low, High)

XL 29" (Low, High)

SM Mullet (Low, High)

MD Mullet (Low, High)

LG Mullet (Low, High)

XL Mullet (Low, High)

View Full Geometry

Size	SM 29" (Low, High)	MD 29" (Low, High)	LG 29" (Low, High)	XL 29" (Low, High)	SM Mullet (Low, High)	MD Mullet (Low, High)	LG Mullet (Low, High)	XL Mullet (Low, High)
Top Tube Length	588mm, 586mm	608mm, 606mm	630mm, 628mm	653mm, 651mm	590mm, 588mm	610mm, 608mm	632mm, 630mm	655mm, 653mm
Head Tube Angle	65.0°, 65.9°	65.0°, 65.9°	65.0°, 65.9°	65.0°, 65.8°	64.1°, 65.0°	64.1°, 65.0°	64.1°, 65.0°	64.1°, 65.0°
Head Tube Length	95mm	95mm	105mm	120mm	95mm	95mm	105mm	120mm
Seat Tube Angle	77.0°, 77.9°	77.0°, 77.9°	77.0°, 77.9°	77.0°, 77.8°	76.1°, 77.0°	76.1°, 77.0°	76.1°, 77.0°	76.1°, 77.0°
Seat Tube Length	390mm	400mm	430mm	450mm	390mm	400mm	430mm	450mm
Bottom Bracket Height	337mm (39mm drop), 349mm (27mm drop)	337mm (39mm drop), 349mm (27mm drop)	337mm (39mm drop), 349mm (27mm drop)	337mm (39mm drop), 349mm (27mm drop)	325mm (39mm drop), 327mm (27mm drop)	325mm (39mm drop), 327mm (27mm drop)	325mm (39mm drop), 327mm (27mm drop)	325mm (39mm drop), 327mm (27mm drop)
Chainstay Length	445mm, 442mm	445mm, 442mm	445mm, 442mm	445mm, 442mm	445mm, 442mm	445mm, 442mm	445mm, 442mm	445mm, 442mm
Wheelbase	1205mm, 1203mm	1225mm, 1223mm	1249mm, 1247mm	1275mm, 1274mm	1205mm, 1203mm	1225mm, 1223mm	1249mm, 1247mm	1275mm, 1274mm
Standover	677mm, 689mm	683mm, 694mm	706mm, 718mm	720mm, 732mm	676mm, 690mm	682mm, 696mm	705mm, 719mm	721mm, 733mm
Reach	445mm, 454mm	465mm, 474mm	485mm, 494mm	505mm, 514mm	435mm, 445mm	455mm, 465mm	475mm, 485mm	495mm, 505mm
Stack	618mm, 611mm	619mm, 611mm	627mm, 620mm	641mm, 634mm	625mm, 619mm	626mm, 619mm	635mm, 628mm	649mm, 641mm
Additional Info	• Mixed ("Mullet") wheels (29" front, 27.5" rear) • Geometry adjustable via two-position flip chip in rear shock mount to allow 29" rear wheel • All specifications listed are with 150mm travel fork

Sizes Additional Info

• Mixed ("Mullet") wheels (29" front, 27.5" rear)

• Geometry adjustable via two-position flip chip in rear shock mount to allow 29" rear wheel

• All specifications listed are with 150mm travel fork

View Full Geometry

Size	SM 29" (Low, High)	MD 29" (Low, High)	LG 29" (Low, High)	XL 29" (Low, High)	SM Mullet (Low, High)	MD Mullet (Low, High)	LG Mullet (Low, High)	XL Mullet (Low, High)
Top Tube Length	588mm, 586mm	608mm, 606mm	630mm, 628mm	653mm, 651mm	590mm, 588mm	610mm, 608mm	632mm, 630mm	655mm, 653mm
Head Tube Angle	65.0°, 65.9°	65.0°, 65.9°	65.0°, 65.9°	65.0°, 65.8°	64.1°, 65.0°	64.1°, 65.0°	64.1°, 65.0°	64.1°, 65.0°
Head Tube Length	95mm	95mm	105mm	120mm	95mm	95mm	105mm	120mm
Seat Tube Angle	77.0°, 77.9°	77.0°, 77.9°	77.0°, 77.9°	77.0°, 77.8°	76.1°, 77.0°	76.1°, 77.0°	76.1°, 77.0°	76.1°, 77.0°
Seat Tube Length	390mm	400mm	430mm	450mm	390mm	400mm	430mm	450mm
Bottom Bracket Height	337mm (39mm drop), 349mm (27mm drop)	337mm (39mm drop), 349mm (27mm drop)	337mm (39mm drop), 349mm (27mm drop)	337mm (39mm drop), 349mm (27mm drop)	325mm (39mm drop), 327mm (27mm drop)	325mm (39mm drop), 327mm (27mm drop)	325mm (39mm drop), 327mm (27mm drop)	325mm (39mm drop), 327mm (27mm drop)
Chainstay Length	445mm, 442mm	445mm, 442mm	445mm, 442mm	445mm, 442mm	445mm, 442mm	445mm, 442mm	445mm, 442mm	445mm, 442mm
Wheelbase	1205mm, 1203mm	1225mm, 1223mm	1249mm, 1247mm	1275mm, 1274mm	1205mm, 1203mm	1225mm, 1223mm	1249mm, 1247mm	1275mm, 1274mm
Standover	677mm, 689mm	683mm, 694mm	706mm, 718mm	720mm, 732mm	676mm, 690mm	682mm, 696mm	705mm, 719mm	721mm, 733mm
Reach	445mm, 454mm	465mm, 474mm	485mm, 494mm	505mm, 514mm	435mm, 445mm	455mm, 465mm	475mm, 485mm	495mm, 505mm
Stack	618mm, 611mm	619mm, 611mm	627mm, 620mm	641mm, 634mm	625mm, 619mm	626mm, 619mm	635mm, 628mm	649mm, 641mm
Additional Info	• Mixed ("Mullet") wheels (29" front, 27.5" rear) • Geometry adjustable via two-position flip chip in rear shock mount to allow 29" rear wheel • All specifications listed are with 150mm travel fork

Wheel Size

Mixed Wheel Size

E-Bike Class

Class 1: Pedal Assist (Pedelecs)

Motor

Bosch Performance Line CX, 600 W max power, 85 Nm max torque

Battery

Bosch PowerTube, integrated, removable, with ABUS lock/key

Battery Capacity

625 Wh

Display/Remote

Bosch top tube integrated display, Bosch wireless remote

Modes

Turbo, Sport/eMTB, Tour, Eco, Walk Assist

Max Speed with Assist

USA/Canada/New Zealand: 20 mph (32.2 km/h)

Other: 15.5 mph (25 km/h)

Frame Material

Aluminum

Frame Material Details

ALX Trail alloy, molded chainstay and downtube/battery protection

Rear Travel

140mm

Rear Shock

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

Fork

RockShox Lyrik Select, 35mm stanchions, includes mudguard/fender

Fork Travel

150mm

Head Tube Diameter

Tapered, 1.125" top, 1.5" bottom

Headset

FSA HBS-220, sealed bearings, ZS44/28.6 upper, ZS56/40 lower

Handlebar

Polygon Expert, 780mm width, 25mm rise, 9° backsweep, 35mm clamp diameter

Stem

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

Grips

Brakes

Magura MT7, 4-piston
Rotors: Magura MDR C, 6-bolt, 203mm

Brake Levers

Magura HC3, reach adjust, leverage adjust

Drivetrain

Shifters

SRAM SX Eagle, 12-speed

Front Derailleur

None

Rear Derailleur

SRAM GX Eagle, 12-speed

Chainguide

Upper slider

Cranks

SRAM Eagle Alloy

Chainrings

SRAM Eagle, X-SYNC, 34 tooth

Pedals

Alloy flats, replaceable pins

Chain

SRAM GX Eagle, 12-speed

Cassette

SRAM SX Eagle PG-1210, 12-speed, 11-50 tooth

Rims

Entity MT9, double-wall alloy, 32 hole, tubeless ready

Hubs

DT Swiss 370 Classic, 15mm x 110mm (Boost) front, 12mm x 148mm (Boost) rear with HG driver

Spokes

Stainless steel, 14g, with 12mm brass nipples

Tires

Schwalbe Hans Dampf, EVO line, Super Trail casing, Addix SpeedGrip compound, TLE, 2.6"

Saddle

Entity Xtend, CrMo rails

Seatpost

TranzX JD-YSP23JL 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

Colors

Rustic Sand

Warranty

5 years frame, 2 years Polygon/Entity and e-bike components

Weight

Miscellaneous

• Single pivot rear suspension design
• Mixed ("Mullet") wheels (29" front, 27.5" rear)
• Geometry adjustable via two-position flip chip in rear shock mount to allow 29" rear wheel
• Internal cable routing
• Power settings customizable via Bosch eBike Flow Mobile App

Price

$4,799.00

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 E-Bikes
	Free shipping on orders over $50 (contiguous U.S. only). International shipping available. Some exclusions apply.	Browse available E-Bikes
	Free shipping on orders over $50 (continental U.S. only). International shipping available. Some exclusions apply.	Browse available E-Bikes
	Free shipping on orders over $69 (continental U.S. only). International shipping available. Some exclusions apply.	Browse available E-Bikes