trailer tires.

[rolmops]

I was just offered to buy a few sets of 7.75-14st tires on wheels for very cheap.Are these tires interchangable with F78-14st tires?
Thank you help.

 

[tashasdaddy]

Re: trailer tires.

here is a conversion chart, they look the same, but by how they are rated, they look to be 30 years old. came from here: http://www.vintagecarconnection.com/vintage_tire_size_conversion_chart.htm


7.50-14 775-14 195-14 F78-14 P205/75R14 P215/70R14



Pre-1964 1965-72 80 series metric Alpha Numeric 78 series P-Metric 75 series Radial P-Metric 70 series Radial
5.90-13 600-13 165-13 A78-13 P165/75R13 P175/70R13
6.40-13 650-13 175-13 B78-13 P175/75R13 P185/70R13
7.25-13 700-13 185-13 D78-13 P185/75R13 P205/70R13
5.90-14 645-14 155-14 B78-14 P175/75R14 P185/70R14
6.50-14 695-14 175-14 C78-14 P185/75R14 P195/70R14
7.00-14 735-14 185-14 E78-14 P195/75R14 P205/70R14
7.50-14 775-14 195-14 F78-14 P205/75R14 P215/70R14
8.00-14 825-14 205-14 G78-14 P215/75R14 P225/70R14
8.50-14 855-14 215-14 H78-14 P225/75R14 P235/70R14
5.90-15 600-15 165-15 A78-15 P165/75R15 P175/70R15
6.50-15 685-15 175-15 C78-15 P175/75R15 P185/70R15
6.40-15 735-15 185-15 E78-15 P195/75R15 P205/70R15
6.70-15 775-15 195-15 F78-15 P205/75R15 P215/70R15
7.10-15 825-15 205-15 G78-15 P215/75R15 P225/70R15
7.60-15 855-15 215-15 H78-15 P225/75R15 P235/70R15
8.00-15 885-15 230-15 J78-15 P225/75R15 P235/70R15
8.20-15 900-15 235-15 L78-15 P235/75R15 P255/70R15

the columns would not line up.

 

[rolmops]

Re: trailer tires.

Thank you very much.
Putting 30+year old tires on my trailer and under my boat is begging for trouble. I will just have to cough up up some real money if I want real tires