22 replies to this topic

[Dan]

You can get beadlock systems designed to lock a regular tyre into a rim without a safety bead, it's a kind of additional belt around the inside of the rim that prevents the tyre slipping further into the wheel. Does the same thing as a safety bead. You'd have to ask a local tyre fitter for more details though. They do make the wheel heavier and make balancing more complicated.

[Jordie]

We have beadlock systems fitted to our applied sweepers at work. They are on split rim wheels and run some silly expensive tyres.

In MY opinion, still dont think its necessary.

[maph2]

We have beadlock systems fitted to our applied sweepers at work. They are on split rim wheels and run some silly expensive tyres.

In MY opinion, still dont think its necessary.

maybe the OP is converting his mini into a road sweeper.................

[scrabblelicous]

Am i asking a silly question here but exactly how powerful is your mini that you have the issue of stripping a tyre?

[Asphalt]

Runflat tyres have nothing to do with safety beads, imo...
Safety beads are designed to be able to run tubeless tyres.

The wheels I'm going to use are hardly known at all. http://i3.ebayimg.co...2/d8/e5ea_1.JPG

If you look close, you see that there's not much space for the tyre's bead so it looks like it can easily slip into the dish.

Hmmmm. I think the only way to get what you are after is to have beads of weld built up around the wheel but the chances of the weld being even all the way round and the wheel being out of balance after the work was done could be an issue. I have been around Minis for getting on for 30 years and I've never heard of the tyres coming off the rims being a problem, you would have to slide into a curb or be running with low tyre pressures for it to happen even in fast road driving.

Basicly you fit the wheel to a rotating automatic welder, build up material and bring it into shape with a lathe.

Also be careful putting tubes into tubeless tyres. Tyres designed to run with tubes have a smooth inner surface were as tubeless have a rough surface. I had a tubeless tyre repaired on my old Opel Manta and 18 months later I found out that they had used a tube when it blew on the M6 at high speed. The police officer that pulled over when I was changing the wheel said the reason that tubeless is written on the side of the tyre is to stop this happening. Unfortunately the tyre place that took the screw out of the tyre 18months before couldn't be bothered to use the correct patch and had slung a tube in instead.

That's another very good point!

It's not about power... Yo can do some hard cornering with an 850 too...

I see noone here has ever considered doing it nor done it... Question awnsered. Thanks for the input...

Oh, and by the way: It's a legal requirement in Germany to have tubes fitted if no humps are present.
And given that and the limited choice of tubeless(!) tyres...

Edited by Asphalt, 10 March 2009 - 01:41 PM.

[scrabblelicous]

yes but it requires hard cornering and power to strip a tyre....

[Guess-Works.com]

I personally dont see what all the fuss is about. Most 10" rims don't have these 'humps', basically because most of them were made and designed when Radial tyres were a bit of a 'new thing', eg my brand new Cooper S steel rims are as smooth as the babies proverbial...

It would be interesting to hear from other members who drive on the continent/germany and the requirement to run tubes...

Does this impact people who are driving over for the BH2N, do they need to be putting tubes in their 10" wheels ?

[Asphalt]

Does this impact people who are driving over for the BH2N, do they need to be putting tubes in their 10" wheels ?

No. Because their cars are registered in the UK and therefore UK law applies to them.

Or vice versa: there's a chap here who runs two Calibra turbo lumps in a Corsa. german TÜV (MOT) would never-ever allow this - so it's registered and MOTd in the UK, he pays UK's tax - so he's allowed (well - it's a huge grey area) to run the car in germany "as long as it is save".


Avon CR-6 ZZ and Dunlop Aquajet seem to have official approval for use with tubes.
Both are expensive - but it's another option.

I just had an interesting phone call with a Yokohama engineer.
The basic conclusion was: either find a tyre which is allowed for use with tubes, or get new wheels.
Tubeless tyres with tubes are pretty dangerous, because they can rubb and suddendly deflate.

On the other hand - noone will realy see if a) the wheel has safety beads or not and b) if there's a tube in or not if a tyre's on.
But in worst case of all worse cases and they find out - I'm totaly *******...