Polygon Siskiu N series is an aluminum full suspension enduro bike with a combination of parts and technology design to be ready to be ridden in the most demanding of conditions. An aggressive, agile, and fast bike for the rider who wants to defeat their personal limitations all-day in the mountains to the local trails. All models of Siskiu N are built around a lightweight aluminum frame with a tapered headset adopting the new Boost Hub standards, with 170mm(27.5") and 160mm(29") suspension fork