9 of 15 customers found this review helpful.
I couldn't have ask for more.
I have put about 600 miles on these tires thus far and they have been flawless. I came from a set of Conti Ultra Sports which were far from stellar. The Ultremo ZX
Has more grip in the corners than I dare use, 40 mph through fast corners and they have plenty more grip in them.
Rolling resistance is low, I saw a 10 mph speed increase down the same hills and picked up speed in the flats.
They have proved to be remarkably durable, the one flat I have experienced was on the rim side of the tube not the tire side. A few pieces of glass have gotten embedded in the rubber, but nothing has managed its way past the puncture protection belt.
True to advertised weight, mine measured 192g and 196g.
For a race tire these have proved a remarkably good trainer. I am the riding parter Echtogammut mentioned and between 1200 miles between the two of us we have experienced one puncture and we end up riding on some filthy roads. As others have mentioned the tires are quite supple with a nice road feel and smooth out a lot of vibrations. The tires appear soft and fairly thin when you open up the box, as you would expect for a 195g tire, but looks seem to be deceiving as these have been extremely robust. No threads coming off of the sidewalls, and although there are some cuts in the rubber there are incredibly few compared to my previous tires and they are smaller and shallower. The tires seem to wear well for how sticky they are.
With the horror stories out there about the original Ultremo R, I was slightly apprehensive about the ZX, but these tires have proven to be fantastic and I have nothing but praise for them.
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