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My rear tyre has a flat centre section, so ive bought some new versions.
What effect does such a wear pattern have on performance - if any?
Just idly wondering, tyre doesn't seem to puncture any more frequently - in fact I think I've only had one flat in 18 months.
The centre being flat will effectively lower your gearing, meaning you have to spin faster to achieve the same speed. All that rubber on the road will add to rolling resistance and the tyre profile will be less aerodynamic.
You're going to be soooooo much faster on those new tyres.
I'm 5'2" 9.5 stone, 49yrs old, riddled with arthritis & a partial cripple - I'll never be fast!
I think most road tyres are prone to this to some extent or another.
I've been riding krylion carbons or pro4 endurance (same thing rebadged) and currently on my 4th set. Yet to fully wear one out as they always get really squared off and noticeably draggy after around 2k miles. Tend to rotate front/rear at this point and run until 3k miles, at which point both are square, draggy and have numerous minor cuts.
I tend to ditch the rear rather than putting it on the front. That squaring off can sometimes give odd handling.