any reason for this other then a slow slow slow puncture as it takes ages to go down once pumped up? when i got the service done they did say it needs changing as damage to inside wall...... just rang a few places and got a few quotes but what i wanna know is, does it matter what brand i get? he said nexen some midrange brand but ive never heard of them, the rest i.e kwik fit and others are wanting £75 and upwards for budget tyres