Interesting. My initial vision of cracking issues was naturally of side walls. However, having googled the zv7 cracking issues, I was surprised to find that it is not an isolated case as quite a few people have suffered. It seems the cracks appear circumferentially in the depth of the tread so may not be obvious unless it gets a close up inspection.
If I had ZV7 tyres fitted, I would want to give them a regular close-up inspection for peace of mind.
