Polygon Siskiu T7 Full Suspension 29" MTB 2026

The Polygon Siskiu T7 is a capable and confidence-inspiring trail bike built for riders who want versatile performance on technical descents, flow trails, and all-day mountain adventures. Its ALX Trail alloy frame with 140mm of rear travel provides a stable yet playful platform, offering the balance needed for climbing efficiently and descending with control. With modern trail geometry, the T7 is designed to handle challenging terrain while remaining comfortable on long rides.

A RockShox Recon Silver RL 140mm fork works together with a RockShox Deluxe Select Plus rear shock to deliver smooth, predictable suspension that absorbs impacts and improves traction. The Shimano Deore 1x12 drivetrain provides a wide-range 10–51T gear setup for steep climbs and fast descents, while Shimano hydraulic disc brakes ensure strong, reliable stopping power in all conditions. Boost hub spacing and Polygon MT6 wheels add stiffness and precision to the ride.

Equipped with a XFusion Manic dropper post, wide 780mm handlebar, and Maxxis Dissector 2.40” tyres, the Siskiu T7 offers excellent control, stability, and grip on demanding trails. Perfect for adventurous riders progressing into more technical riding, it delivers dependable capability and trail-focused performance for a wide range of mountain biking terrain.

FEATURES

ALX Trail alloy frame with 140mm travel engineered for stability, control, and modern trail performance

RockShox Recon Silver RL 140mm fork and RockShox Deluxe Select Plus rear shock for smooth and adjustable suspension

Shimano Deore 1x12 drivetrain offering wide-range gearing and dependable shifting on steep terrain

Shimano hydraulic disc brakes delivering strong and consistent stopping power in all conditions

Polygon MT6 wheelset paired with Maxxis Dissector 29x2.40" tyres for excellent grip, durability, and trail confidence

XFusion Manic dropper post providing improved control on climbs, descents, and technical sections

Polygon Expert cockpit components designed for stability, leverage, and all-day riding comfort

SIZE GUIDE

S Frame Size 155 to 165cm Height

M Frame Size 165 to 175cm Height

L Frame Size 175 to 185cm Height

XL Frame Size 185 to 195cm Height

SPECIFICATIONS

Frame Material: ALX Trail, 140 mm travel

Fork: RockShox Recon Silver RL, 140 mm travel

Rear Shock: RockShox Deluxe Select Plus, E2E 210 x 55 mm, M8 x 25 mm hardware

Shifter: Shimano Deore SL-M6100, 1x12-speed trigger

Crankset: Shimano FC-M6120-1 Boost, 32T

Cassette: Shimano Deore CS-M6100-12, 10–51T, Microspline

Rear Derailleur: Shimano Deore RD-M6100-SGS, direct attach

Bottom Bracket: Shimano 2-piece crankset, BSA threaded

Chain: KMC New X-12

Pedals: Alloy flat pedal with replaceable pins and reflector

Saddle: Linc Xtent, Cr-Mo Ø 7 mm rails

Seatpost: XFusion Manic LC, 150 mm travel (S, M) / 170 mm travel (L, XL), 30.9 x 429 mm (S, M) / 473 mm (L, XL)

Handlebar: Polygon Expert, 780 mm width, 35 mm clamp, 30 mm rise/drop, 9° bend

Stem: Polygon Expert, 35 mm extension, 35 mm clamp, 0° rise/drop

Headset: FSA No.57E for tapered head tube, ZS 44/28.6 | ZS 56/40

Wheelset: Polygon MT6

Wheel Size: 29"

Tyres: Maxxis Dissector 29 x 2.40"

Rims: 584 / 622-29, 32H, tubeless-ready rim tape installed, for tyre 584 / 622-54/76

Hubs:
Front: Shimano HB-TC500-15-B, thru-axle 15 x 110 mm, 32H, Center-Lock
Rear: Shimano FH-TC500-MS-B, thru-axle 12 x 148 mm, 32H, Center-Lock

Spokes:
Front: Stainless J-bend, 29", NDS 292 mm / DS 294 mm
Rear: Stainless J-bend, 29", NDS 292 mm / DS 290 mm

Brake Levers: Shimano BR-MT420

Brake Calipers: Shimano hydraulic disc

Rotors: Shimano SM-RT54, 180 mm, Center-Lock