Recent article from Motorrad Magazine

[Grumpy Goat]

Hmm I don't think you can extrapolate longevity based on covering 3600km like that and the numbers certainly don't seem to correlate with my own experience on the PR4's which got 18,000km on the rear and is at almost 30,000km at the front.

Since I'll be changing the front soon and keeping the PR4 on the rear I'm unlikely to do anything but a PR4/5 depending on the price anyway.

I don't think that you can go wrong with either one. I have the Roadsmart III now and so far so good, for less money. We'll have to see how long it holds up but it should last me a while.