Those results would be what I expect, my deeper siping snow tires put less rubber on road. Road tires use rubber to adhear to road, off road tires use siping tread to attempt to grip loose surfaces
Those results would be what I expect, my deeper siping snow tires put less rubber on road. Road tires use rubber to adhear to road, off road tires use siping tread to attempt to grip loose surfaces
The snow tire does kick butt in snow and ice but:
Wet Test Results
As with the snow test, it takes a purpose-built test surface to get meaningful and accurate wet test results. What's needed is a large flat VDA with a special asphalt formulation and a water-delivery system that can maintain a uniform depth of water (the approximate thickness of a quarter), so there's a consistent coefficient of friction across the entire surface.
We find it at Arizona Proving Ground (APG) near Phoenix, formerly a Volvo facility and now branded as Ford. Its pristine micro-pool looks gorgeous on this May afternoon as the surrounding mountain peaks, little fluffy clouds and spring sunlight reflect in the glassy surface.
It turns out we can test everything to and from 60 mph here, so for brevity's sake we'll stick to a discussion of those results. Those who want to can find the 40-mph results on the accompanying charts.
Acceleration testing provides the first surprise, as the all-season tire trails the pack with a 15.4-second 0-60 run. The snow tire's 12.7-second effort for 2nd place is significantly better, but the summer tire tops them all with an 11.9-second performance, over 20 percent quicker than the all-season tire. In fact, the all-season tire began encountering trouble near 40 mph, where it had been only 0.4 second behind the summer tire's performance when hydroplaning and wheelspin paid a visit.
Things are much the same when braking from 60 mph. The summer tire's 157-foot stop is the shortest, the snow tires come up 2nd at 181 feet and the all-season tires lag further behind in a flurry of ABS activity on the way to a distance of 215 feet, some 58 feet longer than the summer tire.
On the wet skid pad the summer tire smokes them once more, even delivering a little tire squeal as it churns out 0.81g — a figure many car-tire combinations can't match on dry pavement. The winter tire trails with a 0.71g run characterized by noticeable squirm, presumably from the side loads acting on the numerous sipes in its snow-biased tread pattern. That said, it still bests our all-season tire, which once again brings up the rear with a disappointing 0.65g showing.
The excerpts you are posting.. are from tests with tires installed on a car, right?
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Yes but I think it crosses borders somewhat. I think it would be hard to find a test of CTs on motorcycles. As I said all are plenty good and most likely better than a MT. It is just that this F6B forum is the only place I find that claims a snow tire has better traction over a summer tire even when not in snow. I don't find anything to make me believe that is true. Like the choice to run a CT or not it is also up to the individual as to run a snow tire or not, I chose a summer tire not because of traction but looks alone. It just happens to rated really high in the traction category but as you asked that is on a car.
What BRAND and model tires are they testing ? There are crappy all season, summer and snow tires out there as well. Like every product ... some are superior to similar products within the same category.
Specifics please
Other wise this information is coming from Russia
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Here is the link for the Edmunds test. Next is a short statement as to what Discount Tire Direct has to say.
https://www.edmunds.com/car-reviews/...vs-summer.html
Winter tires are far superior to all-season tires when it comes to driving in dry, wet, snow, sleet, and icy winter conditions. Summer tires excel in both dry and wet warm weather conditions, but become too stiff in cold weather to be able to provide reliable performance. Regardless of road conditions, once temperatures drop below 45 degrees, winter tires provide the most reliable performance over any all-season or summer tire. Winter tires are so specialized for winter that they do not perform as well in warm, dry conditions, and will likely wear very rapidly. It is recommended that you install summer or all-season tires as soon as the weather is consistently above 45 degrees.
This is just me doing my thing, your needs may be different.
I do NOT run a Snow tire, because I want max grip for the 90% of the time when I need it. The other 10% when it is wet I am already going slow due to conditions.
I have felt the smaller tread blocks of a snow tire flex more and I don't care for that feeling when leaned over hard in a long sweeping curve. For me the large solid section of rubber on a summer tire and holds better.
I run a Summer tires. I look at it as the more solid rubber in contact with the asphalt will give me the most DRY traction. There are enough sipes in a summer tire to give me decent wet traction and as I stated above, in wet I am already at a decreased speed and surely not scraping pegs.
I have a good amount of Car Tire experience with 3 different tires on 2 different bikes and somewhere around 80,000. miles but again this is just me and my way.
One last useless bit of info, if more tread blocks gave better traction, why do all race tires look more like slicks?
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