sorry if this has already been covered. i bought a mtb last week for 15 yr old son but not sure i got the right size. heis 166.5cm (5ft 5.5"), inside leg 85cm (33.5") and the bike we bought is cube aim sl 29er, 17" frame. we're just starting out so didnt really know anything about how to choose the right size. we've been to several shops including specialist bike shops. the advice was very poor, based on height only, not even asking about inside leg, or doing any kind of fitting, and only one shop let us ride the bikes. most only had the bike he liked in one size so hard to make comparisons. i hadnt realised inside leg was important until visiting a bike sizing website - this asked about bike type, height and inside leg (but after entering his height wouldnt let us enter his actual inside leg - max was 83cm) and didnt ask for wheel size. it suggested 18.5" frame (i've bought 17" - shop recommendation based on height only). so i'm wondering whether the size we got is too small - how can we tell? this bike comes in 5 frame sizes - 15" 17" 19" 21" 23" and as we've chosen towards the lower end of the range thats another thing that makes me think maybe its too small. can anyone offer any advice please?
also is it usual when buying bikes for teens to allow for growth, or get something thats right for them now? going by the height of the rest of us in the family i expect he'll grow to about 5ft10".
thanks for any advice.
also is it usual when buying bikes for teens to allow for growth, or get something thats right for them now? going by the height of the rest of us in the family i expect he'll grow to about 5ft10".
thanks for any advice.