An update, my TKC 80s have now done 2300miles and the rear looks about half worn i think i might scrape 4500 miles if i am very lucky. The rear wears very fast at first but the wear slows down as the tyre starts to flatten. The down side is it now tends to wobble a bit now on high speed bends and the motor way if its windy, its not dangerouse but it didnt do it when the tyres were new. As i live next to the motorway i use it every trip out and highish speeds really wear these tires. The front tire has hardly worn and i may consider a different rear tire when a replacement is needed but which one? Any recommendations folks?

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XTz 660 tenere, adventure spec bash plate, main stand, skid marks tall screen, Oxford tail pack 36 litre. Kobra hand guards, Bigger cast footpegs, Zen overland luggage plate, USB power point, iridium spark plug, TKC80 f k60 R tyres, o2 and fuel Kev mods, DNA stage 2 filter. bark buster bar wieghts, Touratec side stand base and GPS mount. Led spot lights