What To Consider When Upgrading From 4.80-12 To ST175/80R13 Tires
Updated 01/05/2026 | Published 09/16/2024
Question:
I want to go from a 12 x 4.80 trailer tire to a 175/80 13 on my 4 kayak trailer. There is clearance inside the fenders for the upgrade. Is there any reason I shouldnt go bigger. I trail long distances and thought a larger diameter tire would be better.
asked by: Chris V
Expert Reply:
Hello Chris, thanks for reaching out. Fender clearance is the main thing to consider when upgrading tires. Our rule of thumb is you want at least 3" between the fender and the tire, and at least 1" between the inside of the tire and the frame of the trailer. As long as you have enough clearance, you can definitely upgrade.
The only other thing to keep in mind is you don't want to overkill the load rating of the tire by too much. Higher rated tires have a more stiff sidewall, and if the tire is rated too high for the trailer it can lead to a rough ride. Going from a 4.80-12 to a ST175/80R13 this should not be an issue.
Product Page this Question was Asked From
Karrier ST175/80R13 Radial Trailer Tire with 13" Galvanized Wheel - 5 on 4-1/2 - Load Range C
- Trailer Tires and Wheels
- Tire with Wheel
- Radial Tire
- Load Range C
- 175/80-13
- 13 Inch
- M - 81 mph
- 5 on 4-1/2 Inch
- Steel Wheels - Galvanized
- Kenda
more information >
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Jesse M.
1/5/2026
Hey Chris, how did the upgrade to the 175/80 13 tires work out on your kayak trailer? Did the clearance and ride quality turn out the way you hoped for long trips? Your experience could help others thinking about the same tire change.