TerraFirma Wheels Bead Lock broken bolts

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I had a look at these and although the outer rim is bolted the inner rim is standard, What is to stop the tyre coming off on the inner rim?

I assume it’s clamping force and the lip on the locking ring in bead lock mode

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Originally Posted by trout1105

I had a look at these and although the outer rim is bolted the inner rim is standard, What is to stop the tyre coming off on the inner rim?

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I've never had anything to do with beadlocks, nor really understood how they work but if I'm correct,the tyre can be fitted like a regular rim ,or if you're using the beadlock,the outer lip of the tyre stays on the outside of the rim,then sandwiched in place with the beadlocks. Is that correct?

Quote:

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Originally Posted by trout1105

I had a look at these and although the outer rim is bolted the inner rim is standard, What is to stop the tyre coming off on the inner rim?

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Many wheels can only have the tyre mounted from one side, the inner rim is higher.
I heard a comment once (10 or so years ago) from a desert racer type, that the problem nowadays is that a lot of beadlocks are made more for show, than for serious use.
AFAIR his were threaded into the rim, and his pit crew were always complaining about the number of times they had to torque the bolts down after fitting new tyres.

Indeed, the outside rim lip is easier to get a tyre on then the inside rim lip. Also, the wheel itself has a large flat bed that is fairly high on the inside side of the wheel. This means that you need to put in quite a bit of effort to actually move the rubber over this part and you can move it quite a bit before loosing grip/air tightness. ie you can actually have the tyre slide over it for about an inch or two at least without it loosing a lot of air, if any. Dirt will get in and start causing trouble but at least you still have air in your tyres and can soldier on untill you get to a flat surface to clean stuff out in stead of being stopped dead in your tracks. Also, usually the forces are placed on the outside of the wheel or at least they take the most force so you want to lock your bead on that side over in the inside. You can do both (but not with these terrafirma wheels).

All in all I think they are useful but a royal pain in the backside to mount. I would think that the comment about modern beadlocks being poser rims has some truth to it. After all, these are alloy rims and for really hard wheeling steelies are still preferred I believe.

-P