Can radial tires be mixex with bias

[DarkBlack]

This is much debated.

Warpspeed is correct in the sense that the distance around the outside of the tread does not and cannot change.

With that given, wouldn't it be logical to assume the distance traveled with each revolution remains the same? Even though the sidewall has bulged and shortened the tire height if measured from the ground up to the top of the tread?

This fact is what made Radial tires so popular. The radial design keeps the circumference from changing. This design makes the tire roll much easier because of a lack of distortion on the tread face. Thinner, softer sidewalls take care of the "squat" or "bulge". The sidewall requires much less HP to flex than the tread would.

Nothing to debate. He said Rolling circumference

A given tire with more air has a larger rolling circumference. That is a fact. 1 revolution travels a further distance. How do you think vehicles without pressure sensor valve stems determine a tire pressure is low? Jeopardy music playing....

 

[ovrszd]

Nothing to debate. He said Rolling circumference

A given tire with more air has a larger rolling circumference. That is a fact. 1 revolution travels a further distance. How do you think vehicles without pressure sensor valve stems determine a tire pressure is low? Jeopardy music playing....

Yep, you are right.

 

[CoyPatton]

Opinionated reply: For a given tire size, being air pressure dependent, especially at lower air pressures, your main concern would be "rolling circumference". Since you said "I put", past tense, you already mixed them. I'd get on soft ground in 4wd and make some zippers. Tweak your radial air pressure (should be the most sensitive to this trial) until you don't see any squirming on either set of tire marks. That would be what I would do.

Fronts are auxillary power so main drive needs to be rears. Any differences should favor rears with no sliding marks. Course in turns you want the fronts pulling you around the turn rather than the rears pushing straight ahead and forcing the fronts to slide/being pushed through the turn.....analogous to a front wheel drive sedan pulling you through a turn vs a rear wheel drive pushing the fronts for an example.

I noticed European farming Utube videos where large 4wd, radial equipped, farm tractors pump up the tires for road use and once on the field deflate the tires. I would assume 2wd is used on the road and it's obvious 4wd was the necessity in the field. So pumping them up for road use may have been to reduce sidewall flexing for longer tire life, not an attempt to maintain the proper drive ratio between fronts and rears.

I have mixed the two on drive and driven vehicles on the road and with 4 ply type tires, the radials will squirm while the bias won't and makes for a funny feel, not unsafe, just different. I would prefer bias on the fronts with a FEL if mixing, unless the fronts are near the diameter of the rears, like older Fords, JD, and IH machines I have seen.

You dropped a word in your response which changed the entire statement. Not sure what your motive was, but I have an opinion!

The OP wrote “CAN I PUT”
While you changed it to “I PUT” and proceed to state it had already been done!

Shame shame shame on you!