A combination of parts, passion, and technology design to whip you up in the most demanding of conditions. An aggressive, agile, and fast bike for those who want to conquer their personal limitations in the mountains. The 2021 Polygon Siskiu N9 with a no-worries and durable 1x drivetrain that further improves your performance. Those combinations result in a bike that does not compromise; efficient when pedaling uphill, precise handling, and reliable to beat any descents.