I dunno? I have been running on them all summer so far many track days lots of heating up in the burn out box lots of street abuse and there is still lots left on them. they are a r2 compound quite soft.

Guys in the states are saying 5000miles and more so....
but at just over 200 bucks a piece a set a season is nothing.

They are way cheaper then the nittos and the bf's and are way better in my opinion.

KD's are an awesome street Tire!!
They don't hook worth Shite though at the track (lowest 60 footer was 2.062)
Ranged from 2.525 down to 2.062 even launching from 2500 rpm down to just idle!
Even tried knocking the air pressure down to 22 PSI as well!
Awesome tire for the street for handling and ride!

Any recommendations on who makes a good 17" drag radial??

m/t's are the best hands down. they make a 275/40/17 they rock.

That is what I am seeing and hearing also.

Fuzion ZR's on my Stang with 275/40/17 on a 9.5" rim. Nice riding tire and grip quite well. I have a extra set of rims so I may buy MT for 2 of them.