>>1482371>Not him, but Marathon Plus and tire liners?>Isn't that a little overkill?Check this out. I just pulled this from my sisters bike. She's just running basic dirt bike tires on a 20 year old trek, but it should get my point across.
Marathon Plus tires don't even have super high initial penetration resistance. They work because of the sheer thickness of the tread, 9mm, which is pretty huge.
However, something like this offending staple can work its way in and it is much longer than 9mm. This was 3/4 of the way into my sisters tire. This could absolutely defeat a Schwalbe Marathon Plus.
In that Schwalbe video they show people riding over thumb tacks and broken glass. Yeah. Marathon Plus tires are 9mm thick. Tacks are not that long, so the sheer tire thickness will save you. Likewise most glass shards will break off as you ride and won't reach the necessary 10+mm depth to puncture your tire.
But something like THIS will worm its way deeper and deeper into your tire over time until it will.
With something like a tire liner you're putting a strong barrier between the tire and the tube so that one of these wires worming its way through your tire will, hopefully, hit the tire liner and be deflected and bent over and the penetration will stop. This seems validated by lots of peoples experience with tire liners preventing deeper penetrations.
So yeah, I think if I do buy some Marathon Plus tires I'm definitely going to put tire liners on them. The tire itself will protect the tube due to the sheer thickness of the tread, which should defeat 90% of offending objects, but if an offending object does worm its way into the tire, it will hopefully be bent over and blunted by the tire liner. It seems pretty logical to me.