WarPig wrote on Sep 20, 2021, 20:49:
I wonder how much mud and gravel will embed itself in the sides of those tires, and then how hard will it be to clean them out. I would think that a rock stuck up inside there could do some damage as it possibly wears a hole as the tire flexes.
I have a hard time believing that they'll last three times as long as today's tires. Maybe three times longer than a tire that's constantly improperly inflated, but I don't see how the tread itself is any different.
Another thing is that they'll probably need their own custom wheels.
It's a whole bunch of "could" last up to three times. It doesn't mention anywhere about a different high mileage tread compound but it does talk about retreading. Not sure if retreading comes into that three times longer hoopla.
"Because you don’t have to worry about tire punctures or underinflation that leads to early wear, Michelin says that the Uptis could last up to three times as long as a regular tire."
Uptis eliminates the need for pressure checks, making it ideal for self-driving vehicles and passenger car fleets.
from the Uptis-FAQ-September-2020-v2-1.pdf
7. Is Uptis durable?
Uptis, as designed, is robust but not indestructible. Uptis can withstand much greater shocks and
impacts than a traditional tire, and greater impacts than other wheel solutions. Michelin is also
advancing research to enable the airless wheel assembly to accept multiple retreads (i.e., the
rechargeable or 3D-printed pillar of innovation in the Vision concept), which would extend its total
lifespan dramatically and deliver many more maintenance-free miles than a pneumatic tire for
9. Will Uptis impact the fuel efficiency of my vehicle or range for electric cars?
Today’s level of rolling resistance is about the same as a zero-pressure (“run flat”) tire, i.e., 8 kg/t. So
one can expect the same fuel efficiency when switching to Uptis from a run flat tire. This performance
will improve with future developments in design and materials for Uptis. Fuel efficiency of traditional
tires is affected by pressure loss, which will not happen with Uptis.
20. What is the estimated mileage?
Uptis will have the same mileage of a standard tire.
- I refer to it as BC, Before Corona, and AD, After Disaster. -