Details
SMALL SIZE, BIG FUN
The Siskiu T27 EVO carries the same do-it-all trail spirit as the regular Siskiu T, but is purpose-built for smaller and younger riders. Its lightweight alloy frame, 140 mm of rear travel, and 27.5″ wheels deliver an agile yet stable ride, while shorter 165 mm crank arms and a 100 mm dropper post ensure comfort, control, and a dialed fit for compact riders.
ULTIMATE VALUE
Built for riders ready to push their limits: the ALX Trail aluminum frame with One-Piece Link delivers efficient suspension performance, paired with a RockShox Recon Silver RL fork and Deluxe Select+ shock for confident control. Shimano Deore 12-speed drivetrain, Tektro hydraulic brakes, and a KS Rage-I dropper post complete a trail-ready build that hits the perfect balance of capability and value.
INDUSTRY REVIEWS
“An entry-level MTB for those looking to improve their skills and have a great time doing so." - BikeRadar
Specs
| frameset | |
|---|---|
| Frame | ALX Trail Frame, One-Piece Linkage Suspension Platform, 140 mm Travel (27.5”), Internal Routing for Dropper Post and Derailleur, Direct Post-Mount Disc Brake, 148×12 mm Boost Thru-Axle, 73 mm Threaded BB, ISCG 05 Tabs |
| Headset | FSA No.57E (S.H.I.S.: ZS 44/28.6 | ZS 56/40) |
| suspension | |
| Fork | RockShox Recon Silver RL, 150 mm Travel, Solo Air Spring, Rebound and Compression to Lock, Tapered Steerer 1-1/8” – 1-1/2”, Boost 15×110 mm Thru-Axle, Maxle Stealth |
| Shock | RockShox Deluxe Select Plus, DebonAir, Rebound, 2-Position Compression, 210×55 mm, M8×25 mm Hardware |
| drivetrain | |
| Rear derailleur | Shimano Deore RD-M6100-SGS, 12-Speed, Direct Attach |
| Shifter | Shimano Deore SL-M6100, 1×12-Speed Trigger |
| Crank | Shimano FC-M6120-1 Boost, 32T, 165mm Crank Arm |
| Chainring | 32T, Max Chainring: 34T |
| Cassette | Shimano Deore CS-M6100-12, 10-51T, MicroSpline |
| Chain | KMC X-12 |
| brakes | |
| Front brake | Shimano MT420 Hydraulic Disc, 4-Piston |
| Rear brake | Shimano MT420 Hydraulic Disc, 4-Piston |
| Rotor | Shimano SM-RT54, 180mm Center-Lock |
| wheels | |
| Front hub | Shimano HB-TC500, 15×110 mm Thru-Axle, 32H, Center-Lock |
| Rear hub | Shimano FH-TC500, 12×148 mm Thru-Axle, 32H, Center-Lock |
| Rim | Polygon MT6 Sleeved Alloy 6066, Asymmetrical Design, 18mm Height, 29mm Internal / 32.4mm External Width, Sapim Leader Spokes, Tubeless Ready w/ Tape ** |
| Tyre | Maxxis Dissector 27.5×2.40", 3C MaxxTerra, EXO+, Tubeless Ready ** |
| Max tyre size | 27.5×2.60" |
| contact points | |
| Handlebar | Polygon Expert Alloy, 720 mm Width, 35 mm Clamp, 30 mm Rise, 9° Backsweep |
| Saddle | Fizik Terra Alpaca X5, S-Alloy Mobius 7 mm Rails |
| Seatpost | X-Fusion Manic LC Dropper Post, 100mm Travel, 30.9×314 mm, 0 mm Offset, 34.9 mm Bolt-Type Clamp |
| Stem | Polygon Expert Alloy, 35 mm Length, 35 mm Clamp, 0° Rise |
| Pedals | Alloy Flat Pedals with Replaceable Pins and Reflectors |
| weight | |
| Bike weight | 34.9 lbs ( Size M ) |
Geo
| Frame Size | XS (27.5") |
| Height (cm) | 4'11-5'3 |
| (A) Frame Stack | 578.9 |
| (B) Frame Reach | 420 |
| (C) Head Tube Angle | 65° |
| (D) Head Tube Length | 90 |
| (E) Seat Tube Angle | 71° |
| Effective Seat Tube Angle | 76.5° |
| (F) Seat Tube Length | 375 |
| (G) Effective Top Tube | 559.2 |
| (H) BB Height | 335 |
| (I) BB Offset | 20 (Drop) |
| (J) Chainstay Length | 425 |
| (K) Wheelbase | 1146.4 |
| (L) Standover Height | 666 |
| Front Travel | 150 |
| Rear Travel | 140 |
| Dropper Post Travel | 150 |
| Maximum Tyre Width | 2.6" |
| Maximum Chainring Size | 36T |
* All lengths in mm
Build
2024 Polygon Siskiu T8
Your bike needs minor assembly before riding; use the tools and videos included.
As a guide, it'll take 10-40min depending on whether you're an experienced bike assembler or have little to no mechanical experience.
Side Note: Your cables will stretch during the initial bed-in period and must be adjusted by an experienced mechanic around 150km of riding.
Unboxing Your Bike
Dial In Your Suspension Setup
Dial In Your Bike Fit
Dial In Your Tyre Pressures
Pre-Ride Check