Thanks for the suggestions! It is great fun riding with him, but my teeth still hurt from yesterday’s chinning.
It’s not my main bike. It has a super long steerer tube I’ve never got round to cutting down and 50mm riser bars. He’s probably tall enough to hold the bars, but he’s now got the idea of brakes and has been poking at the gear shifter.
It’s got a ,480mm reach and a 70mm stem. The other hardtail has a 530 reach and 35mm stem. I’m not sure that would make much difference, it might be worth a try.
The bike has a dropper. I’ve been clattered with the seat up and down.
The saddle is all the way forward as it keeps my knees happy on long rides. There aren’t any long rides with the wee one on board, perhaps putting that back will help.
I’ve got a full face, I think he’d just smack the chin bar up in the process of chinning me!
The follow me tandem is on the list for when he migrates to a pedal bike when he gets a bit bigger. I’m not convinced it is a super idea with his current balance bike.