My GP4s tyres have loads of small " nicks" in the rubber, nothing wrong with them though. No need to bin them.
I used Continental Grand Prix Grand Tour tyres (25s) for summer and winter - the same balck chilli compound as in the 4000S but better puncture protection - particularly on the sidewalls. I then bought some Michelin Pro 4 Endurance on a special offer - and they're fantastic! I haven't noticed any lack of grip compared to the Grand Tours, but the wear rate is much better. The Continental's are quite soft and therefore you need to make sure that there are no bits of flint etc embedded in them. I haven't found this issue with the Michelins.
Sorry to resurrect an old thread.
I ended up going tubeless on both bikes. That has been fine on my commuter and the sealant worked well. And I'm never more than 2 mins from a black cab should I get a puncture the sealant can't cope with
On my weekend rides I disappear into deepest darkest Kent and - although I haven't had a puncture the sealant can't cope with - I'm more nervous and am thinking of going back to tubes on my weekend bike.
Michelin Pro4 Service Course tyres seem to be popular with many of you. But I saw someone saying they come up large (i.e. 25mm measure up 27mm). I already have wide rims (Velocity A23s) so would prefer a tyre that measures up closer to 25mm rather than having a tyre that says it is 25mm but in effect is 27-28mm which would start causing me clearance issues I suspect
Of the other tyres stated, do people find they measure up as 25mm?
Schwalbe durano plus or double defence are pretty tough so is the IRC aspite and lighter to but all tyre with tubes have a habbit of loosing all there air suddenly.
The Pro4's are a race tyre. A light race tyre too there is only so much puncture protection you can build into a light race tyre. those that have good luck with them have the blessing of being light, riding on cleaner roads or just plain lucky. If some one is getting 5000 miles from pro4 rear tyre I'd say they are lighter than me. Therefore mileage claims should have total ride and bike weight included.