Ratio Astrum CSD Review

ratio astrum csd frame

Ratio pack every one of their frames with a multitude of performance enhancing features, as well as incorporating Ratio’s distinct design, these aspects are why cycling enthusiasts around the world choose Ratio for their competitive road bike. A carbon monocoque frame with a CSD seatpost, this pioneering composite and ergonomic design delivers strength, rigidity and aerodynamics, whilst maintaining a low weight. Every aspect of the Astrum frame has been carefully composed, from the internal cables to the BB30 bottom bracket, while it’s great technical design makes the Ratio Astrum CSD frame one of the most exciting frames ever developed by this pioneering company.

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