Big thanks to modern geometry; a slacker head angle and longer reach and steeper seat, makes the Polygon Siskiu D series unbelievably capable for riders looking to tackle XC riding with some aggression. The anti-squat has been optimized for pedaling performance and the suspension is more progressive for when the trail gets rowdy. We improved support under power, enabling Siskiu D platform climbs like a hardtail without substituting comfort or traction. The downs are even better when you enjoy the climb up. Features Enjoy a steady steering - Less flex for excellent front-end control with its tapered head tube design Designed for an aggressive ride - A slack head tube angle, long reach, and steep seat angle to tackle any ride. Better traction, better handling - With our Faux Bar System, Siskiu D provides you maximum traction on the rear tires for a steady handling and comfortable riding on climbs and downs. Specifications Frameset ALX XC TRAIL FRAME Fork SUNTOUR XCM HLO, 120MM TRAVEL Frame Color RED - BLACK Decal Color NICKEL - DAVY GREY Rear Shock SUNTOUR RAIDON LO AIR, E2E: 190x51MM Drivetrain Shifter SHIMANO SL-M3100, 2x9-SPEED TRIGGER Rear Derailleur SHIMANO RD-M3100 DIRECT ATTACH 9-SPEED Pedal ALLOY CAGE PEDAL W/ REFLECTOR Crank SHIMANO FC-MT210 36/22T TWO PIECE CRANK, 170MM BB BSA THREADED 68/73MM Cassette SHIMANO CS-HG200 11-34T 9-SPEED Chain KMC X9 Cockpit Saddle ENTITY VOID, SADDLE ø 7mm Handlestem ENTITY SPORT ALLOY, E: 45MM, B: 31.8MM, R/D: 0DEGREE Seatpost ENTITY SPORT ALLOY, DXL: 30.9x350MM Heaadset THREADLESS ZERO STACK HEADSET, ZS 44/28.6 | ZS 56/30 Handlebar ENTITY SPORT ALLOY, W: 760MM, BB: 31.8MM, R/D: 12MM, B: 0DEGREE Wheel & Tire Wheel Set ALLOY DOUBLE WALL Tire PERFORMANCE TIRE 27.5"x2.25" Rim ALLOY DOUBLE WALL 584-15 32H FOR TYRE 584-35/68 Wheel Size 27.5 Hub F: ALLOY QRx100mm 32H CENTER LOCK / R: ALLOY BOOST QRx141mm 32H CENTER-LOCK Brake Brake Lever SHIMANO MT200 HYDRAULIC DISC BRAKE Brake Caliper SHIMANO MT200 HYDRAULIC DISC BRAKE Rotor FRONT:180MM REAR:160MM CENTER-LOCK Geometry & Size S M L Height (cm) 152-165 162-175 172-185 Seat Tube Length (A) 395 435 485 Seat Tube Angle (B) 70 70 70 Effective Seat Tube Angle (C) 75.5 75.5 75.5 Head Tube Length (D) 102 105 122 Head Tube Angle (E) 67 67 67 Effective Top Tube (F) 572.7 595.1 617.5 Bb Height (G) 326 326 326 Bb Offset (H) 27 27 27 Chainstay Length (I) 432 432 432 Wheelbase (J) 113 1157 1181 Frame Reach (K) 425 445 465 Frame Stack (L) 571.2 580.4 589.6 Standover Height (M) 676 696 729