I've had them on the front for the last year, Lee. They're really good (Did the last trackday with them - Toyo T1-R on the back) - but personally I don't feel they're quite as good as Toyo T1-R fronts in the cold. Seriously thinking of putting r888 on next. :D
 
ive had a couple of sets of these if there on the front they will last you a year if your lucky but ive had no other probs with them :D