Tyre problems on 29er

[Bike Mob]

it sounds like you are blowing them off the rim after fitting and not while riding?

 

You may need to soap up your sidewalls to get an even fit around the rim when it seats, sometimes they blow off if you have a tight spot in the bead and it's folded the wrong way over, then you start to inflate and it blows over the low lips crests have. I have had this happen on a few spesh tires and Schwalbe.

 

All times I was lazy installing dry tires. If you don't have a soapy solution to apply on the sidewalls then use Mr Min furniture spray or silicone spray. Then pump up incrementally while the bead seals evenly you can bounce the wheel on the ground a few times to bump the bead out too.. You'll also end up with a nice smooth even seated tire with no hops in its rotation. i only need to go up to 3 bars like this and then deflate to my required pressure

 

As an added bonus it will make your tire sidewalls shine when you wipe them down afterwards.

[LOSMEICHERIE]

Sounds to me like a faulty rim or tyre.

 

that's really bad for Gazzer996 but what makes me wonder how can he have 2 faulty rims ?