Over the last week I've driven about 750 miles in the Caterham - Belgium, France and East Anglia. Weather has been anything from drizzle and cold, to sunny and warm. In all this time I had the tyre pressures at 21 PSI. Tyres are 185/70 on 13 inch rims, so high sidewalls. In East Anglia I was in the company of a group of friends with Sevens, and they were running Toyos R888s or Avon ZZSs, so I feel I have a good basis for how these tyres are working for me. Compared to the A021s, they are a good alternative. They gripped really well in the dry, and were as good as the AO21s in the wet. I suspect that my friends with the Toyos and Avons have a bit more grip in the dry, as witnessed by a spirited afternoon of following them on a drive on twisty roads through the countryside. I also noticed that the Avons and Toyos provide a wider contact patch - the tyres are 'squarer' than the Uniroyals, so this might also have an effect on grip levels. After nearly 1000 miles there is little wear, and I would be surprised if these tyres don't outlast the A021s by some margin (I used to get around 4000 -5000 miles out of a set of the AO21s). On tyre pressures 21 psi feels good with none of the squirm I first experienced. A well-regarded race engineer did tell me he thought that was too low - they have the Uniroyal as a control tyre on a number of their race series and he suggested 25 PSI. Anyway, if you are after a good touring tyre at around £50 a corner, then the Uniroyals should be worth a look.