Knowing when to change tyres

May sound a dumb question but at what stage would you replace your tyres?
Obviously there is minimal tread on road tyres, and the centre 20% runs smooth relatively quickly, but at what stage will my tyres be risky to use anymore?
How many miles do you get out of a tyre?
Obviously there is minimal tread on road tyres, and the centre 20% runs smooth relatively quickly, but at what stage will my tyres be risky to use anymore?
How many miles do you get out of a tyre?
0
Posts
the wear indicators have gone, assuming there were any
the carcass is showing
puncture rate gets too high
Trax T700 with Lew Racing Pro VT-1 ;-)
In the summer, it's more forgiving, there's more grip.
I last replaced mine when the thread was largely(0.5-1cm) worn in places and you could see the second layer underneath.
On avg, mine last 3000-4000 miles. I use continentals.
Still didn't puncture though; good old 4 Seasons!