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The difference between 8-ply and 4-ply wool, can depend on the weight of the plies. Some 3-ply yarns have heavy weight (fatter) plies, which knit up heavy worsted, where 2-ply lace weight yarn plies are much lighter (skinnier) plies that knit up very light/lacy/small.If I were to guess, the 8-ply in question, may have smaller plies than the 4-ply. I think if you double the 4-ply, that would be too much. You should try a gauge swatch using the 4-ply singularly, and maybe adust the needle size.
The rolling resistance to be overcome regardless of tire type at 55mph requires under 10 horsepower of a typical passenger car. While bias ply tires do offer more resistance, the difference is extremely small - a bias ply may require the maximum of 10 hp, but even if the radial reduces this to the minimum, about 6 hp, the 4 hp difference will take a full tank of gas under exactly the same driving conditions to measure a difference in gas mileage. Gas mileage is not a valid reason, alone, to choose radial tires. However, noise, ride comfort, tire heat, adhesion, are all reasons not to use bias ply unless really necessary. In addition, Nylon bias ply tires "set" in cold weather and result in a "thump-thump" until they warm up.
It really depends. If you tractor is 2wd then Front is (5-12, 4 ply, F2 tire) and the Rear (9.5-16, 4 ply, R1 tire). If your 650 is a 4wd then the rear is the same but the front is (6-12, 4 ply, R1 tire) Hope this helps you out.
This all stems back to bias tires. A few decades ago, to gain more load carrying capability, tire manufacturers added more plies to increase the amount of pressure a tire could safely contain. Remember, the pressure carries the load, but the plies contain the pressure. Switch to radial tires, specifically radial truck tires (19.5, 22.5, etc.), tire manufacturers now use 1 single steel cord ply that runs radially from one bead to the other that has the equivalient strength of multiple fabric plies that were used in bias tires. Even with light truck tires, you might see a load range E radial tire referred to as a 10 ply tire, does it have 10 plies? Nope, usually 2 or in some cases 3 very strong polyester body plies.
As long as all 4 match, the height difference between 65 and 70 should not cause a problem on most vehicles.
1 ply, 2 ply,3 ply and i think 4 ply not sure. and there is the wash stuff, Cotton, normal, extra strength and a few others
Some features of the Cooper ST tires include 3 ply rubber compound with a chip and cut protection to them. They have a 4 to 5 thread design and unique tread features including increased traction, and low road noise.
The load range indicates the ply rating of the tire or the number of plys under the tread. A = 2 ply B = 4 ply C = 6 ply D = 8 ply E = 10 ply F = 12 ply G = 14 ply H = 16 ply J = 18 ply L = 20 ply M = 22 ply N = 24 ply This has a direct relation to the Load Index which tells you the weight the tire can carry. The more plys the more weight the tire can carry.
The difference between -1 and 3 is 4.
3/4
|a-4|
Your question doesn't make sense. For example: 4-ply yarn is 4 singles plied (twisted and set) together.Lace weight yarn is usually single or 2-ply.