Bobmmor, to quote the OMF website..
http://www.omfperformance.com/beadlocks.htm
WHAT IS A BEADLOCK?
Simply put, a beadlock is a mechanical fastening device that literally clamps the tire's bead onto the wheel rim. Once this is done, it is nearly impossible for the tire to become unseated from the rim, otherwise known as "de-beading." De-beading is a common problem for a wheel without a beadlock that is subjected to hard cornering forces or impacts from big-jump landings--when the tire can simply peel itself from the rim, causing a sudden loss of pressure and possible loss of control.
Even off-road and cross-country riders can benefit from beadlocks: should the tire go flat from a puncture or sidewall cut, it will remain in place and not de-bead.
Our Beadlock Wheels are available in 12", 11", 10", 9" & 8" sizes. The 12" is the most common choice for owners of late model 4x4 ATV's and are used both in front and rear. Many offsets and bolt patterns are available. Finishes include anodized red, blue, black or polished aluminum
IF YOU RIDE HARD/FAST a beadlock helps. It also helps against knocks and bumps, it is very strong rim. we all run the risk of de-beading when we get a sidewall cut! it also stops grass/stones/twigs from damaging the tyre bead!
