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Sports Member

Sizing query for 520 mountain bike 27.5

I am trying to buy a 520 mountain bike 27.5 for my 13 year old son.He is 5ft3"/ 160 cm and has a 29" inside leg.

As he is still growing is it better to get a Medium or should a Small last him a few years?Any help would be gratefully received.


Amateur Player

Re: Sizing query for 520 mountain bike 27.5

Hello, The RR520 in size medium is for people sized 165-175cm and the small 155-165cm.

With that I'd suggest the Medium, he'll fit the medium without any issues I would think, the reach may be a tad far but the height will be ok.
B'Twin Product Expert, Decathlon Tamworth
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