[Closed] Under 18's bike club?

We've just recently found out that our 12 year old nephew seems to be a bit of a star when we put him on one of our mountain bikes and so are now wanting to get him one that would suit him better. We are loving going out riding with him but i cant help thinking he would enjoy it more if he was out with other kids of his own age. Only trouble is none of his mates are into biking and not likely to be in the future. Does anyone know of any under 18 bike clubs in the Huddersfield area that might be suitable?
Cheers