Polygon Siskiu N series is an aluminum full suspension enduro bike with a combination of parts and technology design to be ready to be ridden in the most demanding of conditions. An aggressive, agile, and fast bike for the rider who wants to defeat their personal limitations all-day in the mountains to the local trails.

All models of Siskiu N are built around a lightweight aluminum frame adopting the new Boost Hub standards, with 170mm(27.5") and 160mm(29") suspension fork travel and utilizing a FAUX BAR rear suspension system, keeping the frame weight down while reinforcing high-stress areas and reducing flex under heavy loads. The rear swing triangle also features a unibody pivot bridge that stiffens the rear wheel and reduces lateral forces on the rear shock when under load. The frame is finished off with a tapered headset, rear thru axle, internal routing for gears and 125mm (S-M)/150mm(L-XL) dropper post. The Polygon Siskiu N is equipped with a no-worries and durable SRAM GX or SRAM NX 1x drivetrain that further improving the bike's performance. Those combinations are resulting a bike that does not compromise; efficient when pedaling uphill, precise handling, and stable to beat any descents.

Siskiu N Video

Specifications

FRAME ALX AM / ENDURO 170MM TRAVEL (27.5”) / 160MM TRAVEL (29”), TAPER H/T
FORK FOX 36 RHYTHM BOOST 15X110MM, 170MM (27.5”) / 160MM (29”)
REAR SHOCK FOX PERFORMANCE FLOAT DPX2 E2E:205X65 TRUNNION
HANDLEBAR ENTITY XPERT, ALLOY
STEM ENTITY XPERT, ALLOY
HEADSET ZS 44/28.6 | ZS 56/40
SADDLE ENTITY ASSAULT
SEATPOST EXA FORM DRIVE SI 125MM(S-M) 150MM (L-XL) TRAVEL, ZERO OFFSET, 30.9MM
CRANKSET TRUVATIV DESCENDANT 6K ALUMINUM EAGLE 32T NARROW-WIDE BOOST
BOTTOM BRACKET SRAM DUB BSA
PEDAL ALLOY
CHAIN SRAM GX EAGLE 12-SPEED
CASSETTE SPROCKET SRAM XG 1275 EAGLE 12-SPEED 10-50T
REAR DERAILEUR SRAM GX EAGLE 12-SPEED
SHIFTING LEVER SRAM GX EAGLE 12-SPEED
BRAKE LEVER TRP SLATE
FRONT BRAKE TRP SLATE 4-PISTON
REAR BRAKE TRP SLATE 4-PISTON
TYRE SCHWALBE MAGIC MARRY 27.5”X2.60” / 29”X2.35”
WHEELSET ENTITY XL2 DISC 29-584 (27.5”) / 29-622 (29”)
FRAME ALX AM / ENDURO 170MM TRAVEL (27.5”) / 160MM TRAVEL (29”), TAPER H/T
FORK ROCKSHOX YARI RC DEBONAIR BOOST 15X110MM, 170MM (27.5”) / 160MM (29”)
REAR SHOCK FOX PERFORMANCE FLOAT DPX2 E2E:205X65 TRUNNION
HANDLEBAR ENTITY XPERT, ALLOY
STEM ENTITY XPERT, ALLOY
HEADSET ZS 44/28.6 | ZS 56/40
SADDLE ENTITY ASSAULT
SEATPOST EXA FORM DRIVE SI 125MM(S-M) 150MM (L-XL) TRAVEL, ZERO OFFSET, 30.9MM
CRANKSET TRUVATIV DESCENDANT 6K ALUMINUM EAGLE 32T NARROW-WIDE BOOST
BOTTOM BRACKET SRAM DUB BSA
PEDAL ALLOY
CHAIN SRAM NX EAGLE 12-SPEED
CASSETTE SPROCKET SRAM 1230 EAGLE 12-SPEED 11-50T
REAR DERAILEUR SRAM NX EAGLE 12-SPEED
SHIFTING LEVER SRAM NX EAGLE 12-SPEED
BRAKE LEVER TEKTRO ORION
FRONT BRAKE
TEKTRO ORION 4-PISTON
REAR BRAKE TEKTRO ORION 4-PISTON
TYRE SCHWALBE MAGIC MARRY 27.5”X2.60” / 29”X2.35”
WHEELSET ENTITY XL2 DISC 29-584 (27.5”) / 29-622 (29”)
  A B C D E F G H I J K L M
Size Seat Tube Length Seat Tube Angle Effective Seat Tube Angle Head Tube Length Head Tube Angle Effective Top Tube BB Height BB Offset Chainstay Length Wheelbase Frame Reach Frame Stack Standover Height
S (27.5") 400 71.5 75 100 65.5  563.8     355    5 DROP  435  1153.9  405  592.7  720.7
M (27.5") 430 71.5 75 100 65.5  593.8  355    5 DROP  435  1183.9  435  592.7  718.8
M(29") 430 69.5 75 90 65.5  600.1  343.5  33 DROP  439.4  1194.9  435  616.1  720
L (29") 470 69.5 75 102 65.5  624.5  343.5  33 DROP  439.4  1221.1  456.6  626.1  743.1
XL (29") 520 69.5 75 115 65.5  656.2  343.5  33 DROP  439.4  1255.3  485  638.8  773.7

Technology

BOOST SYSTEM

The Hub Boost System allows for wider flanges and stronger spoke tensions to be used, adding lateral stiffness to the rim and improving bike handling.

FAUX Bar Suspension System

Polygon's FAUX BAR suspension system on the Siskiu N was created to give you a bomb-proof design that will require a lot less servicing and maintenance, thus allowing you spend more time on the saddle. FAUX BAR bikes are built with a longer rear shock stroke that allows for more progressive bump reading, allowing the bike to track the trail better and give you a smoother ride when it gets rough.

One Piece Linkage

Provided with one piece linkage to boosting the optimization of the suspension and increases stiffness while decreases weight.

Tapered Headtube

A Tapered Headtube allows for a broader contact area between the frame and fork, greatly improving bike handling and front wheel stiffness, important when you're railing berms at high speed. Using an oversize headtube, designers were able to optimize welding points between the downtube, toptube and headtube to create an unyielding front end.

Wheel Fit Size System

The Polygon Wheel Fit Size System assures each frame size is paired with a wheel size that perfectly fits the rider's height for better efficiency and optimal riding experience. This allowed us to concentrate on what the bike should feel like on the trails, guaranteeing a consistent riding experience for all riders. Small and Medium frames are paired with 27.5” wheels, whilst Medium, Large and XL frames use 29“ wheels.

Tubeless Ready Wheelset

The Entity XL2 rims are ready to be converted into tubeless, enhancing grip and comfort when running low pressures on rougher trails.

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