Gidday Ricker
Thanks Kevin,
So are the stock XT geo 17's even more susceptible to rolling off the rim than say the dueller 16's?
Duellers are a heavier sidewall tyre (IIRC ... ). A heavier sidewall tyre is always going to be less susceptible to turning on the rim than a softer sidewall tyre. Also less susceptible to rolling off the rim, but see below.
Didnt someone mention there is an inner bead that is built into the tyre or something to prevent modern day tubeless tyres from doing exactly that?
The thing you are talking about is built into the rim, not so much the tyre. However, all modern tyres have a stronger bead than was common in my youth.
All
rims made since about 1960 are called "double sided safety rims", and have a hump between the edge of the rim and the centre on both inside and outside inner parts of the rim that are the right width to hold the tyre beads in place on each side of the rim, even when fully deflated.
These rims are NOT designed to hold the tyre in place when silly loads are being placed on it (swerving on sand, for example :iconwink: ... ).
They are designed to allow you to safely stop the vehicle in the case of a tyre suddenly going completely flat (rare these days, IME), and also to prevent the tyre being flung off the rim at speed in this case.
Ever wondered why all modern tyre fitting shops use hydraulic tyre levers?
Try removing or fitting a modern tyre manually and you will quickly discover why!
Tyre beads are very strong.
Serious off-road vehicles use steel split rims, which allow for relatively easy removal and refitting of tyres in the field. It can still be very difficult to break the tyre bead to rim seal if the tyre has been on the rim for a long time ... VERY difficult ...
Or is that more for if your very slowly rolling, rather than moving at 30-40km/hr and swerving.
Yes. See above ... :rotfl: