The Polygon Siskiu D8 is designed for high-performance sport riders who need a proven full suspension platform for local races or just-having-a-good-time riding fast on any trails. Featuring a stiff and optimised ALX alloy frame with 27.5 wheels for improved traction, braking, and handling. Siskiu D8 will keep you fit while pedalling up hills and will encourage you to develop handling skills while challenging other riders. The new 2017 frame design allows the riders to upgrade to 142mm x 12mm rear hub if they wish with Polygons own 2HRU technology. New for 2017 the Polygon Siskiu D8 has a much more modern longer and slacker geometry making it much more comfortable to tougher descents.