There's a place near knaresborough (about 30mins from Leeds) called north eastern tyres and exhausts that are pretty good. Got mine done there, I think it was £60, but don't think they charge if you don't need anything doing.
Used NE Tyres myself but the York (Monks Cross) branch, again, no complaint and they will spend the time with you if that is what you need/want. Hourly rate if you're there as long as I was....
Stevo