I have just had a pair of new tyres fitted to my DVT and the scorpions that were removed although worn may have a few miles left in them. They have only done 4K miles so: The front probably has 2-4K miles left in it. The rear has had a puncture which has been repaired and has done 500+ miles since that repair with no issues, it is a bit squared off but still useable. These are free however you need to collect them in person from the RG19 postcode area. I can post pics up of the tread and sizes if required