@bubblegh wrote:

  They tested the rims and found cracks on two of them and offered me a staff price on a new set of wheels and free labour to change over the rubber, so I went with that. 


That would have seen me asking questions as to me that's stating that they stuffed up,(if you over inflate to get

 

it to bead correctly then any air escaping should have been noticed).

 

They use a lubricant on the bead of the tyre so it slips on easier and any air escaping should be noticed.

 

IMHO they caused the cracks during the fitting process.

 

They also used too much pressure on tightening the wheel,(hence why the nut would've gone in too far and

 

you couldn't get it out).

 

Aluminium can be "fickle" and vary in strength when too much pressure or load is placed on it,(they now make

 

these rims and cross pieces thinner than ever which means they lose part of their strength).


@colic2bullsgirlore wrote:

That two rims also decided to crack at the same time is also unlikely with the common denominator being the fitter and the fitting machine.

 

I wondered, out of interest, what type of rims ie. steel or alloy and what brand of vehicle?

 

NB. If the rims are 20's or 22's then the damage during fitting scenario is a definite possibility because some of them

 

appear to have the structural integrity of used aluminium foil.


There are so many "dangerous" tyres out there due to the lack of strength in those rims,(there is now a high

 

number of flat tyres that are being caused by a crack in the rim).

 

Second hand rims are being sold on a regular basis and a number of those would be faulty,(so they sell them

 

with tyres already on them so that they can say that they didn't know they were damaged),stubborn_smiley_by_mirz123-d4bt0te_zps12f1a5a3.gif

 

It seems to be all about the "look" these days and manufacturers don't seem to care.