I bought a set of Kumho V730s recently and the sidewall promotes the fact that they are both Radial and Tubeless. I thought this was kinda funny, I mean, when is the last time I bought a tire with a tube for a car, or one that was not a radial? Never in my life probably. But then I thought, is there a reason for this? Are tube tires and bias-ply tires still in use for cars somewhere? Maybe in Korea? Or maybe pure race tires?
My Land Rover uses tubes. The wheels aren't designed for tubeless.
E Production uses bias ply race tires IIRC. We had them on our Track Dog racer back in 2002-03.
My favorite is the warning on 16" tires not to mount them on 16.5" rims. First off, I've never come across that size wheel. Secondly, imagine how much of a fight would that be!
No Time
UltraDork
9/7/23 12:21 p.m.
In reply to Keith Tanner :
I've had both 16" and 16.5" wheels on GM pickups, factory and aftermarket. Based on the difference in beads you could get them on there, but getting the beads to seat would be a problem.
fanfoy
SuperDork
9/7/23 12:24 p.m.
Bias ply racing tires are very much a thing. Drove a Miata on some 13" Hoosier A35 slicks a few years back. All the slip angle you want. And all the slip angle you don't want.
IIRC all tubeless tires have to say so, to eliminate any ambiguity.
Just like 16" tires have to say NOT 16.5 RIM. I never looked at 14, 19, or 22 inch tires to see if they had the same warning.
Keith Tanner said:
My Land Rover uses tubes. The wheels aren't designed for tubeless.
E Production uses bias ply race tires IIRC. We had them on our Track Dog racer back in 2002-03.
My favorite is the warning on 16" tires not to mount them on 16.5" rims. First off, I've never come across that size wheel. Secondly, imagine how much of a fight would that be!
My family owned a tire business up until the early 90's so I am quite familiar with 16.5" tires. They have more of a taper on the bead than most tubeless tires so have to be mounted on a special rim. They do not work on a 15" or 16" rim. They are strictly tubeless and were designed as a replacement for 15" tires (tires aspect ratio gives a shorter sidewall, wider tread, but the same outer diameter dimensions as the equivalent 15" tires they were designed to replace.)
One day a guy who owned a pickup truck with and air compressor and had a free lance mobile flat repair service came in the shop and asked my dad for some sized I think they were 8.75-16.5" tire. He wanted just he tire, he was going to mount it on his customer's vehicle. So this guy mounts this tire on a standard 16" rim and it blows up and injures him pretty badly. His mistake, right? Wrong. His lawyer sued my family business, the local warehouse that supplied us with tires sometimes, and the tire manufacturer. None of those 3 were really at fault for this guy's screw up. The guy's lawyer asserted that my dad was negligent in selling a tire to an uncertified tire changer. Oops, there are no certifications for tire changers. It ended up with the guy getting a small settlement because the judge assigned 80% of the fault to him.
I use 24.5" bias ply slicks with tubes on my drag car, helps support the sidewall at very low pressures. I cannot think of another reason to use that combo on something other than old/period correct.