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In most cases Road bikes are measured in cm, but some manufacturers do list their sizes in S,M,L etc. If this is the case then you may need to conduct some research in order to find out which size would be suitable for you.
It is also worth noting that it is easy to get the wrong frame size on a road bike due to the number of different manufacturers measuring their frames in different places, and also with the introduction of "Compact", and even "Semi-Compact" frames. Please use this calculator as a guideline, and if you are looking for a bike/frame that we list on ubyk, then don't hesitate to email or call us for more information on sizing.
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