Looking for a dirt bike to buy for my 12 yr old boy. He's had a TTR 50 as a starter and then put him on a KLX110L (clutch model). Initially lowered it by putting on a shorter aftermarket shock and dropping the forks through the triples. By the time we sold that he was tall enough to ride it in stock form again. We would ride around our yard which has lots of rainforest trees/palms to dodge through and a little creek bed that runs across it but is normally dry. Also take him to ride in local forest/plantations on the QT as well as the occasional ride at the Parklands MX track. He has so far, shown no interest in riding in competition and isn't an aggressive rider when at the mx track. So looking at a bike he can follow me around on and then as he grows inevitably i will be trying to figure out which way he's gone. At the moment he's 5'2", 158cms tall and a skinny as a whippet. He's going to hit his growth spurt pretty soon so trying to future proof while still staying manageable in bike height, weight, power. Tricky age to cater for obviously so throwing out there to the experienced as to what to look for. Obviously with Covid in play it is just about impossible to find a bike in a dealers for him to throw a leg over to see how he goes with seat heights. There are both a new Yamaha yz85 small (14"/16") and also a big wheel (16"/19") at one dealer so I will take him after school today to see how they fit. The big wheel is close to $8K. I was thinking of spending $3-4K on a used bike if possible. Looking for a bike that is well maintained and ready to ride as my mechanical skills are rudimentary so I'm not up for fixing anything to get it running. Bikes on my radar so far: Suzuki rm85, Kawasaki klx 140l (they also have differing wheel sizes), Honda crf125l, Yamaha ttr125. Waiting to hear from a mate who's son has outgrown his couple of year old ttr230 but reckon that could be too tall still. Maybe changing the wheel sizes could be an option on a larger bike if budget allows. I recall owners of KTM freerides doing this for shorter women riders. Noticed a 250r freeride for sale for a decent price which made me have the evil thought that I could ride it as well while he's not looking or end up with it when he/if he's done with it. I may have bought a few surfboards over the years "for the kids" with this great justification to the wife. Anyway...thoughts/recommendations?