Tire Siping

[KatoKid85]

I just bought a set of Cooper Discoverer ATP tires, and I had them siped. Most AT and MT tires will benefit the most from siping.

[passat18t]

Siping voids warranty fyi. I wouldn't do that on brand new tires.

[budnixon]

@passat18t

it is a very common practice in state of Oregon, and it is advised by the actual Tire shop.

I paid $15/tire on/off-road insurance for my tires, so they are warranted by the actual shop for their lifetime.

you must be talking about the actual manufacturer warranty?

[passat18t]

@budnixon. In Denver some shops advise against it, some don't from the local tire stores i've called. Yes I was meaning the mfg warranty is voided after doing that on KM2's. They are great in snow when new (i've had them almost 2 years on my wrangler) but as they wear those tread blocks smooth out. I'll keep them for summer and get some proper M+S rated tires for this coming winter.

[budnixon]

@passat18t

I can only say that siping works great., and having a reputable store warranty it on their own, I am not worried about what manufacturer says.

on ice - siped work a lot better though, from personal experience

[passat18t]

@budnixon. Good to know. Have you siped the KM2's before or is this the first time with these tires?

[budnixon]

@passat18t

That video is of the first set i've put on few years back on my Cherokee, currently I am on my 3rd set on the Wrangler... so far havent found a better overall performing tire on the market.

[KatoKid85]

@passat18t As long as the tire dealorship gives you a warranty, you will be okay.

[lettragepc]

where is the siping i dont see it in this video ?

is it me or ...

[budnixon]

@lettragepc

its you... this is a video of a siping in process... you can google it for a better idea

[F760]

In ga I don't really have the snow and ice you do. Which is great, they are exceptional on road and off road, well you know. My rig weighs a very mild 6800lbs and they are wearing well. Can't complain. Road noise isn't bad, considering re tread design

[F760]

I have 305's and they are not very impressive in snow and ice. Given it's a M/T though, they are decent in heavy rain. I love them

[budnixon]

@F760

Yah, they arent impressive, but it is simply cause of the M/T rating,,, they are not a winter tire...

Here in Oregon, I've found them to be just fine for where / how I use them.

[budnixon]

@Xjhank

Being that KM2 is such a "luggy" tire pattern (m/t), it only made sense to me. I had them siped and went for snow soon after. On snow/ice, made a lot of difference. Without siping much less grip & lots more tire spin.

Although, still... this is no WINTER tire for packed snow/icy road...

[MTLKEBEK]

siping km2s.... why.

[budnixon]

@MTLKEBEK

read up on GOOGLE what siping is for... you'll find out...

[MTLKEBEK]

@budnixon I know what sipping is.......  its already a perfect tire.

[budnixon]

@MTLKEBEK

how you figure its a perfect tire? Tires are excellent on overall terrain, but when it comes to NW winters, isnt too good on the road...

[Bluesypunkrocker1]

@budnixon not to mention your tires will last longer now... siping also keeps the tire cooler.. and since most of the wear is caused by heat... any way.. i'll agree i have all my tires siped... and it definitely helps with traction...

[Stuka87]

@MTLKEBEK The KM2 is worthless on ice and snow. The siping makes it tolerable. It will also greatly improve its on road handling in the rain.

[daytonite122]

@MTLKEBEK My exact question too. Why would you sipe Mud Terrain tires? Mud Terrain tires are for MUD! If you're gonna be driving on snow/ice, get ALL TERRAIN tires, like the BFG AT/KOs or Toyo ATs. Those big lugz on the KM2s are designed to paddle mud and rock climb.

[MTLKEBEK]

@daytonite122 Its for a mall crawler.

[mustannicolas]

what is it doing?

[jakejjs]

i hate siping mudders

[TheKLFORD]

Was he just putting the white letters on it ?

[budnixon]

@TheKLFORD

not sure what you mean... this is a SIPING machine video...