Small trailer tire size guide
Three sizes cover almost every small utility and boat trailer that comes through the shop. Here’s which trailer wears which, the real load and PSI numbers, and the honest tube answer for each.
7 MIN · GREG
7 MINBY GREG
TRAILER GUIDE
Trailer Tire Guides
Small-trailer tires fail more from age and underloading confusion than from miles. These guides cover the sizes we actually stock — 4.80-8, 4.80-12, 5.30-12, and 5.70-8 — what the numbers mean, and how to tell whether your trailer can take the bigger tire.
3 guides in this chapter← All chapters
4.80-8 vs. 5.70-8 trailer tires
Both mount the same 8-inch wheel, but the wider 5.70-8 isn’t automatically the stronger tire. Here’s the width, load, and fender-clearance answer using the two trailer tires we actually stock.
5 MIN · JACOB
5 MINBY JACOB
What does 4.80-12 mean?
4.80-12 means about 4.8 inches wide on a 12-inch rim — a different, taller tire than a 4.80-8 despite sharing a width number. Here’s the size decoded, what runs it, and the tube question.
4 MIN · JACOB
4 MINBY JACOB
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