Tire Siping - JeepForum.com
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post #1 of 16 Old 09-23-2017, 07:21 PM Thread Starter
atrizzy
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Tire Siping

Does anybody have experience with siping MT tires for better packed snow traction performance?

Last winter I swore I wouldn't go through another with my BFG KM2s, but I don't really want to buy a new set or sit there for 8 hrs with a box cutter. Are the commonly sold electric tire groovers OK for accomplishing this?

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post #2 of 16 Old 09-23-2017, 09:10 PM
Jerry Bransford
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I had two sets of BFG Mud Terrain tires machine siped at an America's Tire store and for the second set Discount Tires years ago, I liked the results. I had to call a lot of tire stores before I found any that could do it. It was shocking how few even knew what siping was. Several asked why I thought cutting slices in the tread was a good idea and essentially called me crazy. They were clueless what siping was

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post #3 of 16 Old 09-23-2017, 10:17 PM
TheBoogieman
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Mine came siped and it didn't seem to help. I thought about adding studs, but it was too much work for me.
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post #4 of 16 Old 09-24-2017, 03:40 AM
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There use to be places all over that did this, not any more.

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post #5 of 16 Old 09-24-2017, 03:47 AM
Icarus
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I siped my KO's myself by hand. Took a bit to do (less then an hour a tire), just rolled em off one by one into the basement while I watched tv. Made a big difference on the KO's which sucked badly before I did them and are somewhat reasonable now fwiw...

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post #6 of 16 Old 09-24-2017, 08:59 AM
Red Rubicon
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Les Schwab will sipe them.
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post #7 of 16 Old 09-24-2017, 10:46 AM
Jerry Bransford
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Quote:
Originally Posted by TheBoogieman View Post
Mine came siped and it didn't seem to help. I thought about adding studs, but it was too much work for me.
There's not enough siping on that tire for it to have helped significantly. In that photo I see just one actual sipe which is an actual cut, the rest are kerfs. True sipes are cut, kerfs are molded and aren't as effective.

There are some good pics of tires with a lot of siping present at https://www.google.com/search?hl=en&....0.Gv2W15rn7Cw
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post #8 of 16 Old 09-26-2017, 02:59 PM Thread Starter
atrizzy
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Thanks everyone, I just ordered an electric tire siping tool and will give it a shot myself and report the results.
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post #9 of 16 Old 09-27-2017, 11:01 AM
Triggertx
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Had my Goodyear Kevlars siped (just the inner lugs), and am truly pleased with the results on and off the road. Up here in Idaho its a bit chilly in the winter resulting in the many forms of frozen h20. I have to do quite a bit of wheeling in the snow and ice through the foot hills of the Snake River to get to where I duck and goose hunt and I've been through some crap I wouldn't of thought was possible thanks to the siping.
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post #10 of 16 Old 09-27-2017, 11:14 AM
ChrisHager
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I siped the mud tires on my truck and am very pleased with the results. Here's a snippet of a post from my J-10's build thread. Though they're completely different animals, my J-10 does better in 2WD (rear) in snow than my WJ did in 2WD (rear). My J-10 has siped knockoff Maxxis Bighorns. The WJ had DuraTracs.

As you can see, they only sipe the center tread.

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Also, for those who are curious, I snapped a few pictures of the siping I had done last fall. The front and rear were done the same. I think the rears show more wear as they're the drive tires. I probably should rotate them to keep everything even.

Rear:







Front:






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post #11 of 16 Old 09-27-2017, 11:15 AM
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I siped the mud tires on my truck and am very pleased with the results. Here's a snippet of a post from my J-10's build thread. Though they're completely different animals, my J-10 does better in 2WD (rear) in snow than my WJ did in 2WD (rear). My J-10 has siped knockoff Maxxis Bighorns. The WJ had DuraTracs.

As you can see, they only sipe the center tread.

Quote:
Originally Posted by ChrisHager View Post
Also, for those who are curious, I snapped a few pictures of the siping I had done last fall. The front and rear were done the same. I think the rears show more wear as they're the drive tires. I probably should rotate them to keep everything even.

Rear:







Front:






~Chris
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post #12 of 16 Old 09-27-2017, 03:06 PM
Jerry Bransford
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X2, it's just the inner tread blocks that should be siped. The outer tread blocks see so much more stress that they need to be kept as the factory made them.

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post #13 of 16 Old 10-04-2017, 04:46 AM
lloydsmale
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had a set of km2's sipped. Before they were absolutely scary on snow and ice. Made them much better but still far from a good winter tire.

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post #14 of 16 Old 10-11-2017, 08:33 PM
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I have siped several sets of tires with a tire grooving tool. Just flip the blade over. It certainly helps.

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post #15 of 16 Old 10-12-2017, 09:05 AM Thread Starter
atrizzy
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Just completed this project, will report back after a good snowfall. I too used the tire grooving tool with the blade flipped over.
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