Polygon Siskiu T8 29” Trail Bicycle

The Polygon Siskiu T8 is a full-suspension trail bike for riders who want stronger descending control without giving up efficient climbing. It sits above the Siskiu T7 and T6 in Polygon's current UDH-equipped trail range, stepping up to higher-tier suspension and drivetrain components while retaining the same all-round trail focus. It suits technical singletrack, rocky descents, switchbacks and weekend trail riding rather than cross-country racing or bike-park gravity use.

Trail-Focused Control. Fox suspension at both ends is designed to keep the tyres tracking through roots, rocks and repeated impacts, while the dropper post lets the rider lower the saddle quickly for steeper sections. Shimano SLX shifting gives a broad single-chainring gear range for climbing and descending, and the hydraulic braking system is configured around four-piston stopping power for more control on technical terrain.

Modern Upgrade Compatibility. The frame uses the Universal Derailleur Hanger standard, opening compatibility with current drivetrain systems including T-Type setups. Internal cable routing keeps hoses and control lines protected, while the top-tube accessory mounts provide a place for compatible tool or storage systems. The wheels and tyres are tubeless-ready from the factory, although sealant and valves are still required for conversion. Riders changing drivetrain, suspension or wheel components should match replacement parts to the axle, freehub and brake standards listed in Specifications.