By: John Hardwick

“Polygon bikes has just launched the XQUARONE EX; a new 27.5 wheeled bike that features an all-new suspension system. Suspension designs have become quite refined in recent years and most fall under a few simple categories; single pivot, Horst Link, short-link four-bar and so on. The actual pivot placement will vary, and this has a big impact on how each system performs, but on the whole, these designs follow similar lines”

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