here are a confusing array of tire chains/traction control devices on
the market, and even this particular company makes so many different
models that it's hard to tell which ones are the best. Here's what you
need to know about chains and traction control devices, and why I like
the ones made by SCC. I also include some installation hints at the
bottom of this review.
There are two broad types of traction
control devices: Tire chains and traction control cables. Tire chains
are actual chain links. Traction control cables are long pieces of metal
cables, covered in a plastic coating, and designed to form a Z-pattern
over your tires. The plastic coating is then surrounded by hundreds of
tiny, round, metal springs. Cables are generally regarded as better
because they are easier to install, last longer, are less damaging to
roads, and work better with vehicles equipped with ABS. Also, according
to SCC, you can safely drive with cable devices up to 30 mph, even on
roads with no snow, without damaging them.
You should normally
install traction control cables on your drive wheels, i.e. the wheels
that actually push or pull your car forward. If the snow is really bad,
though, you may have to install cables on all four wheels. Read your
vehicle's owner's manual for more details on where to install your
cables.
In any case, it's a really, really good idea to have TWO
sets of cables in your car at all times. That way, if something breaks
(murphy's law), you won't be stuck.
Within the traction control
cable category, there are two general types of cables: Self-tensioning
cables tighten themselves using a tensioner (which looks, feels, and
operates like a rubber band) that you install when you put the cables
on. Manual tensioning cables are tightened by you, and have to be
re-tightened after you drive for a couple hundred feet or so. I've heard
that emergency vehicles tend to use the manually adjustable models
because they are allegedly safer at speeds above 30 MPH, but driving
above 30 MPH for any non-emergency personnel is illegal with any kind of
traction control device.
There are several advantages to the
manually adjustable models. They tend to have more slack, which can make
installation easier. Also, the tensioners (i.e. rubber bands) on
self-adjusting cables can and do break (it happened to me today) and if
they break, you can't use the cables. So, if you get a cable that has a
tensioner, get extra tensioners, or better yet, an extra set of cables,
just in case.