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From: Austin, Singapore, Kuala Lumpur, Houston, Dallas, Hong Kong, Elgin, etc.. Texas
Siping has been around for more than 40 years that I know of.
Basically, a special machine with a short knife to slice the tire accross the tread every .25 inches or so. So when the tread is working, the sliced tread opens up a little and the edges of the cut can grip the pavement better. I recall a test where it was very effective on wet pavement. Not long ago, I noticed a major tire shop offers this as an option.
cause i've been reading articles in 5 or 6 car and racing mags for decades...been doing autocross and road courses for 7 years, complete with all the discussions and feedback that you get doing so, and i've never heard that term or concept before.......
how weird.......
so has anyone done a controlled study of the effects, a la the testing that they do in Grass Roots Motorsports, to back up, with factual data, what's claimed in the theory?
(not trying to start a fight.....just curious to know if it's only a theory, or if there's hard data out there to support it)