[Closed] Cycle speedway for kids (... and maybe grown up kids too)

My son who is 5 loves riding his bike and is fairly confident with it, been trying to find some kind of club for him to join and found out there is a local cycle speedway club.

Going to take him next week they said he can use his normal bike to start with to get used to the track.

Anyone else do it or have kids that do? Not really sure where you would get a kids bike as only seen adult one abtand the rules of not having brake mounts make things a bit difficult.

I am already looking at my old spares and working out if I have the bits to make one for myself...