Wheel Widening
The Dangers of Wheel
Widening
By Sean Phillips
Custom car shops and wheel
works stores often receive calls or visits from customers who ask if the
current steel or alloy wheels can be widened to allow them to equip the
car with wider tires.
This
is a highly controversial practice.
There are tire and wheel
shops who routinely offer this service, and customers often make use of
this practice as a means to save money over buying new wheels at the width they
want.
Other wheel shops, though, will flat out refuse to even consider
this practice, for reasons that are quite logical.
And
yet, some car owners not only insist on having this done but may even consider
doing it themselves with home welding tools.
Before
you consider having this done to your original equipment (OE) wheels, it's best
to consider the possible dangers.
How Wheels Are Widened
When a factory wheel is widened to accept a wider tire, the
process involves sawing the wheels in half parallel to the barrel and then
welding in a piece of metal between the two halves.
In other words, the joint
between the two edges is simply pressed together with no lateral support at
all.
Such a configuration might be
enough to hold air on a show car that never gets driven anywhere, but many
experts believe that any real road impact could destroy a wheel modified in
this way.
Why Wheel Widening Is Dangerous
Car owners, in their zeal to modify a beloved automobile on
the cheap, neglect to consider why this wheel widening is a bad idea.
In some cases, a car's wheel well might simply be too narrow to
accept a wider tire without scraping against the suspension.
More
to the point, though, is the fact that the kind of welded joint used to widen
wheels may have good lateral strength but very weak sheer strength.
Its ability to resist the
kind of common stress applied at a 90-degree angle to the weld—such as hitting
a pothole or a manhole cover—is very, very low.
The resulting failure of the weld will cause the tire to deflate
instantaneously and can potentially kill you or someone else.
Buying New Wheels Is the Better
Option
Reputable wheels shops will often show the car owner why it
makes more sense to simply buy new wheels.
The cost of having your
existing wheels customized is somewhat less than buying new, wider wheels, but
the dangers of the practice are well documented and simply not worth the risk.
If
these very good arguments don't convince you, and you remain determined to save
money at the expense of safety, make sure to consult a shop that has long
experience with the practice and a willingness to guarantee their work.
And under no circumstances
should you attempt this yourself in a home workshop.
Sean
Phillips is the Operations Manager at Rim and Wheel Works, a family-operated wheel and
tire repair shop located in Waltham, Massachusetts.
Experience
Sean has
been straightening, refinishing, welding and replacing wheels for more than a
decade, making him one of the most experienced wheel repair specialists in the
world. He has repaired thousands of wheels, sold thousands of tires, and
trained multiple wheel straighteners and tire technicians. As a skier and
Colorado native, he has a particular interest and expertise in snow tires and
winter driving.
Sean Phillips
“At Rim
and Wheel Works, our focus is on all kinds of drivers; the daily driver, the
enthusiast, and those that want their ‘bling.’ I myself am less of a journalist
and more of a hands-on repair guy, and that is the kind of focus and
perspective I intend to bring to About.com Tires and Wheels. Tires and wheels
tend to be things you don’t really think about until you have to. I think about
them every day. Our customers appreciate our honest, no-nonsense advice and
that we go out of our way to save them money, and I hope my readers will
appreciate that as well.”
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