Tires - To Sipe or Not to Sipe Toyo M154s

rgatijnet1 wrote:
Since the siping on the Michelin tire picture is curved/angled in the top picture it certainly looks like it was molded rather than someone taking a heat knife and cutting uniform angle cuts along the edge. Way too labor intensive for production tires.

That's what I've been thinking.

The point here is... they appear to have opted for some kind of siping... that looks a bit like aftermarket siping... for these tires targetting the motorhome market.

The question is, should one consider trying to mimic that with aftermarket siping... if... like many... you are not confident in the OEM Michelins... and you know there are very few options for replacement of this proprietary tire size.

As I've mentioned, prior to writing the OP, I had opted to leave well enough alone. I just don't see enough legitimate evidence that it's helpful. Plenty of anecdotes. But little real evidence.

Perhaps with the siping, the Michelins may offer better wet, snow and ice traction. Who knows. But the channels in the Toyos ARE deeper... which is certainly a plus in the rain.

As an aside... I believe there haven't been any recent studies on aftermarket siping because... so many mud, snow and all-season tires already come chock full of sipes. So the motivation to run expensive tests is very low.

This thread marks a very unique situation... which was always the point... where there really aren't well-siped options for this unique tire size beyond the flawed OEM.

Thanks for weighing in.