Invented in the '20s by John Sipe( who else?) for use on shoes tire siping is a procedure performed on new or used tires to increase traction. Sipes are special slits within a tire's tread block that increase wet and snow traction. Sipes provide more biting edges and allow for the dispersion of water from under the tire's tread surface. Siping can be performed on brand new tires, as well as used tires which have at least 50% of the original tread left and rocks removed.
Benefits include increased tread life, lower noise, and enhanced driving performance. Tests conducted by the National Safety Council on the performance of siped vs. unsiped tires on ice resulted in a 64% increase in breakaway traction and an increase of 28% spinning traction. In stopping distance tests, the reduction was from 200 feet to 155. 6 feet - a 22% improvement. Since having my tires siped I no longer use studded snow tires.
Whether you need tire siping is a personal decision. You may need it if your life style and/or occupation require additional tire performance. It may come down to a simple cost/benefit analysis. Les Schwab charges $9/tire for tire siping, is it worth the increased tread life, lower noise, safety, and peace of mind to you and your family?
Here's more info with pictures http://www.4x4review.com/tech/siping.asp This article mentions only siping the center of some tires, I assume this is to prevent blocking.
Toyo M-55s sound like the way to go for my useage.
Benefits include increased tread life, lower noise, and enhanced driving performance. Tests conducted by the National Safety Council on the performance of siped vs. unsiped tires on ice resulted in a 64% increase in breakaway traction and an increase of 28% spinning traction. In stopping distance tests, the reduction was from 200 feet to 155. 6 feet - a 22% improvement. Since having my tires siped I no longer use studded snow tires.
Whether you need tire siping is a personal decision. You may need it if your life style and/or occupation require additional tire performance. It may come down to a simple cost/benefit analysis. Les Schwab charges $9/tire for tire siping, is it worth the increased tread life, lower noise, safety, and peace of mind to you and your family?
Here's more info with pictures http://www.4x4review.com/tech/siping.asp This article mentions only siping the center of some tires, I assume this is to prevent blocking.
Toyo M-55s sound like the way to go for my useage.
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