Primacy HP SSR16

by Alan
(West midlands)

I'm very disappointed in these tires. After replacing all 4 2 years and 6 months ago and having done 16000 miles, Chemix have now advised me they need to be replaced soon as the wear bars are showing. I drive an E Class Mercedes with little mileage. I Regulary tracked, balanced and pressure checked the tires. If anyone has some advice I'd appreciate it.