I typically get around 5k from bias ply rear tires, give or take. The stock Demon sport lasted 4600 miles, the front 6800 miles on my Roamer. On my Vulcan 800A, both tires wore out in 5k miles. The Pilot Active lasted around 5k on the rear and the front around 6k on my KZ650. Radials, OTOH, have lasted 6 to 9k on the rear, and a bit more on the front, but not enough longer to prevent both to be replaced at the same time.
Interesting. Tell me more about the brands and tires.
The bias plys I've run over the years on 6 Harleys, 3 Guzzis, 2 BMW (airheads), and a few JAPanInc products were usually: Dunlop, Metzeler, or Michelin either touring or classic tread patterns.
I'm almost certain the Sport Demons were the ones that lasted the fewest miles, but even they lasted 7k on the rear. As I've said 10k is my min for a rear and I want more like 15k+ for a front, which is the only reason I changed them.
The radials were on 1 Guzzi (CARC), 1 BMW (Oilhead), 1 Buell, and our current Ducati. I don't remember all the brands, though I know there were Metzelers and Pirellis, and I forgot what BMW installed new. Not a single one ever made the 10k mark on the rear, even the one I put on the Breva 1100 which I was really looking for something to last. Though I think most lasted at least 5-6k so almost as long as the Sport Demons.
I find it interesting that both you and Vag seem to have radials that last the same as my experience, but bias plys that don't come even close. I wonder if it's simple tire differences or if there is something else at play. The similar radial experience makes me think tire but who knows.
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