






🚛 Tough Tires, Smooth Rides — Don’t Let Your Trailer Fall Behind!
The Mastertrack UN203 ST235/80R16 is a 10-ply radial trailer tire designed exclusively for trailer use, offering a robust 3,520 lbs load capacity per tire and a max speed rating of 81 mph. With an 80 psi max pressure and symmetrical tread for stability, it’s a reliable, heavy-duty choice favored by professionals seeking durability and performance.



| ASIN | B01EX4OKMM |
| Automotive Fit Type | Universal Fit |
| Best Sellers Rank | #325,479 in Automotive ( See Top 100 in Automotive ) #185 in Trailer Tires |
| Brand | Mastertrack |
| Construction Type | Radial |
| Customer Reviews | 4.6 4.6 out of 5 stars (242) |
| Date First Available | April 28, 2016 |
| Global Trade Identification Number | 00812561022069 |
| Is Discontinued By Manufacturer | No |
| Item Diameter | 30.8 Inches |
| Item Weight | 27 pounds |
| Item model number | HFST45 |
| Load Capacity | 3520 Pounds |
| Load Range | E |
| Manufacturer | Mastertrack |
| Manufacturer Part Number | HF-ST45 |
| Maximum Pressure | 80 Pound per Square Inch |
| Model | UN-203 |
| OEM Part Number | HFST45 |
| Rim Width | 6.5 Inches |
| Section Width | 235 Millimeters |
| Size | ST235/80R16 10Ply |
| Tire Diameter | 30.8 Inches |
| Tread Depth | 10 32nds |
| Tread Type | Symmetrical |
| UPC | 812561022069 |
| Unit Count | 1.0 Count |
| Vehicle Tire ISO Metric Size Description | 235/80R16 |
K**O
Great tire and Price
Replaced my DOT 2018 trailer tires which were same tire brand and model. Never had any issues and had the tires in all sorts of conditions. Price was great, shipping super fast, and tires were manufactured a few months ago. Triple win.
J**N
Trailer for farm
Good tires
R**T
Great product
Fast shipping and the tire works perfectly
M**E
Tire
Saved money.
C**R
Trailer Tire
It looks like a quality item. I have not mounted the tire yet.
K**S
So far so good
Update January 2020. I ordered 2 more so now I'll have 4 in total on my dump trailer. I noticed there's not as much rubber touching the road as there could be. There's large gaps between the tread surfaces which might be the reason they seem to be wearing faster then expected. I'm not really concerned about that because I normally trash tires before I get to use the tread anyway. I'm hard on tires I have a bad habit of overloading the trailer driving over Sharp things with the four-wheel drive on turning sharply. Getting nails stuck in them and not noticing that leak and running them low until they shred. Original post: Side walls weren't quite as stiff as I'd imagined but so far they're both holding up great with plenty of abuse and heavy loads
J**D
Boat trailer
Great tire, heavy duty
T**S
they last
Havent run tese ones yet but have them on both my other trailos work great
S**5
very good tire
B**Y
Just be aware there is no rim included. Nothing stating that it is or isn’t so it should not have a rim in the picture if not included in the sale.
Trustpilot
1 month ago
1 day ago