A little over a year ago I bought a Scott Sub 30 for my then 13 year old son. When I bought the bike it was only just big enough for him with the saddle all the way down, but since then he has shot up in height even faster than I expected, and now has the saddle raised so high that he has to bend uncomfortably to reach the handlebars. There are no spacers that would allow me to raise the height of the headset, so I wondered if anyone knows of different kind of headset we could fit that would raise the handlebar height. A key criteria for my son is that any modification needs to look pretty cool. Alternatively, if I have to get him a bigger bike is there anything I could get that would have plenty of "growing room". He would ideally like another hybrid or fast tourer of some kind. There is no sign that he is going to stop growing any time soon, and I don't want to have to fork out for a new bike every year!