The Xtrada 8 is designed for riders who want to ride on a wide variety of terrain. The ALX super light 6061 hydro formed aluminum frame uses heat treated, hydro formed and butted tubing to give an optimal strength to weight ratio. The tapered head tube provides stable, front-end precision and the new Boost hub spacing on this frame allows for a stiffer wheel with more tyre clearance. The Boost system has also allowed for shorter chain stays, which makes the back of the bike a lot easier to flick around corners. The Xtrada 8 utilises Polygon's new Wheel Fit Size System whereby each frame size is paired with the wheel size that best fits the rider and sets them up for optimal efficiency and power transfer. Frame S, M, L feature 27.5" wheels and frame M, L, XL come with 29" wheels. If you are looking for a racing quality bike with durable and dependable components, the Polygon Xtrada 8.0 is the perfect bike for you.