Also interested, although the decathlon website shows M as 54?
http://blog.decathlon.co.uk/sports/btwin-road-bike-size-guide/
Yeah I'd say that's more accurate but I pulled the size chart from their website too? Looking at it though 54 seems correct
@ElBigMig started
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Also interested, although the decathlon website shows M as 54?
http://blog.decathlon.co.uk/sports/btwin-road-bike-size-guide/