were would u get a gsxr 1000 crank balanced ?? in the north yorkshire area any one have any idears please

No idea, sorry.

Can't imagine that Suzuki would make a crank capable of 13500 rpm which would require balancing

^^^^

Wot he said. Our race spec 1000 GSXRs put out 200+ bhp and revved to 13,800 and never had anything but stock cranks...

they do when u have got ridd of ballance shaft and all teeth are missing of the crank that drives the ballance shaft