Cooper Discoverer M+S Review
Despite what you might think, when you see M+S (mud and snow) on a tire, that means it’s not really designed for true winter performance. Unless, of course, the tire you’re looking at is the Cooper Discoverer M+S.
- True winter performance
- Large selection of sizes
- Mediocre performance
You see, for decades tire brands have been putting M+S badges on the sidewall of their tires, indicating that they are designed for mud and snow. Except they really aren’t. All that symbol means is that the tire is an all-season tire. And in case you don’t know, all-season tires are NOT really designed for all seasons.
A proper winter tires is designated as such by a three-peak mountain snowflake symbol on the side. And the Cooper Discoverer M+S has exactly that. But enough grandstanding: how is the tire?
We spend a lot of time at TruckTireReviews talking about the impressive off-road performance features of tires. This isn’t one of those times. However, if you do get caught on a road completely covered in snow, you’ll be glad to have these tires.
Every single tread block on this tire is just loaded with sipes, which help snow to stick to the tire and make for great grip by allowing the snow on the tire to get traction with the snow on the ground. In addition, there’s Cooper’s patented “snow groove” design on the outside of the tread blocks, which look ribbed to help grab snow, even on the edges of the tread blocks.
READ MORE: Cooper Discoverer AT3 4S Review
We should point out that unlike a lot of winter tires, the Discoverer M+S is studdable. While a great feature that provides the most extreme grip, we advise you to check with your local road rules to see if studded tires are legal there.
When it comes to cold weather driving on asphalt, one particularly unique feature of this tire is the “sawtooth center rib”. Looking like a saw blade, it helps give the tire greater stability (and comfort) as well as better grip and performance in acceleration, cornering and braking. None of those are really highlights of this tire, but they do help give it an edge over some competitors.
The general rule of thumb is, any winter tire is far better than not having winter tires. Is the Discoverer M+S a great option? Honestly, it’s decent. But that’s not a bad thing. It delivers grip on snow and when it’s cold – and that’s what counts.
Lots of folks think you don’t need winter tires if you have a truck or SUV. They’re wrong. The best AWD system in the world can’t do much without grip. Plus, don’t forget about braking. Your big truck is likely a heavy truck. And when there’s not a lot of grip on the road, inertia is the enemy.
Cooper Discoverer M+S Price
Discoverer M+S tires can be had from around $75 each.
Cooper Discoverer M+S Warranty
The Discoverer M+S does not come wth a mileage guarantee but is backed by Cooper’s standard warranty. Cooper will replace a tire deemed defective in workmanship or materials during the first 2/32nds of an inch of treadwear free of charge. Beyond that, Cooper will replace the tire at a pro-rated rate, and the owner will have to also cover the cost of any mounting or balancing.
Cooper Discoverer M+S Sizes