Recommendation for durable tyres 20 staggered

[IanW555]

Hi peeps,

So we have been running the Bridgestone Duelers H/P on the F15 X5, have been pretty happy with their performance until a recent health-check at BMW. 3 of the tyres have "deep cuts" in the tread, one of them being a new tyre! My wife has horses and therefore takes the car where there is lots of loose small stones, which I guess are the culprits?

Has anyone had the same issue, or can anyone recommend a durable replacement? Given the 315/35/20 rear tyre size, the choices are limited.

Thanks,

Ian.