Pirelli PZero SmarTUBE Inner Tube

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2/ 5

Not pressure-resistant and way too expensive!

Bought as an alternative to tubeless. Rolls well. Tyres are very light, but it's better to lose a kilo yourself instead of buying these things. I had hoped they would hold their pressure better than Schwalbe SV20, but it's dirt cheap (especially considering the hefty price). SKS floor pump constantly pops off the valves, where this does not happen with Schwalbe or Bontrager inner tubes. And that doesn't help when you have to inflate them every time before cycling. Delivery was also poor, one of the boxes was completely broken. Suspect this was the case before shipping. All in all, the mis-buy of the year. Hope the technology develops further, as I do believe in this. For now, back to Schwalbe.