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When you’re clocking serious miles, this Kenda Karrier S-Trail combo is ready to roll. The ST145R12 radial tire holds a Load Range D, 8-ply rating with a maximum load of 1,220 lbs at 65 psi. The M speed rating (81 mph) means it’s built for highway use without heat worries. The double steel belts and full nylon plies give it the backbone for long runs under heavy loads, all while meeting DOT specs for safe, dependable travel.
Moisture and salt can eat up a wheel fast, but not this one. The 12" x 4" aluminum AM02 wheel is lightweight, durable, and completely rustproof. Its split-spoke design features a machined face with a clear coat finish on both sides to protect against scuffs and corrosion. It looks sharp right out of the box and stays that way season after season.
The Karrier S-Trail tread is designed by computer to deliver solid grip whether the road is dry or slick. Premium rubber compounds help the tire wear evenly and maintain traction over time. Combined with its radial construction, you get a smoother ride that tracks straight and stable mile after mile.
This assembly is balanced with the right strength where it counts. The wheel itself is rated at 1,520 lbs while the tire carries 1,220 lbs at full pressure. A 5 on 4-1/2" bolt pattern, 0 offset, and 3.19" pilot diameter make for straightforward mounting with standard 1/2"-20 bolts. Everything works together to deliver steady performance under load without compromise.
The Kenda S-Trail setup includes a 1-year worry-free guarantee—if the tire is damaged within the first year, it’s replaced at no charge. That kind of coverage adds confidence when you’re running new gear and want to know you’re backed up from day one.
1. Count the lug holes
Look at the wheel hub or the back of the wheel and count how many lug holes there are(also called bolt holes).
Common configurations include: 4-lug, 5-lug, 6-lug and 8 lug
2a. For even lug counts (4-lug, 6-lug, 8-lug)
Measure from the center of one lug hole directly across to the center of the hole opposite it.
Common configurations: 4 on 4", 6 on 5.5", 8 on 6.5"
2b. For odd lug counts (5-lug)
Measure from the center of one lug hole to the outer edge of the hole directly across (not center-to-center since there's no directly opposite hole).
Common configurations: 5 on 4.5" (most popular), 5 on 5", 5 on 4.75", 5 on 5.5"
Customer Satisfaction Score:
95% were satisfied with this product
5% of customers were not satisfied
Ratings & Reviews
Mike L.
9/11/2026
They look great Paul, thanks for the photo!!
Mike L.
7/14/2026
Those look fantastic, Alex! I installed aluminum wheels on my PWC trailer several years back, and it makes a huge difference!!
Gwendolyn Y.
5/12/2026
The new rims look awesome on your trailer! Thanks for sharing the photo!
Lazer S.
7/28/2026
They definitely look good on there, Jeff! ^___^ Are you pulling this behind a motorcycle?
Gwendolyn Y.
5/4/2026
That's a sweet boat you got, Samuel! Now you're ready to get on the water and enjoy the sun!
Robert
7/3/2026
Product is great and its a much safer feeling having the load range D tires and 81mph speed rating vs the original B range and only 65mph speed rating!
Do you have a question about this Trailer Tires and Wheel?
Info for this part was:
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Lazer S.
5/13/2026
Glad we had what you were looking for, Clint! Sorry about the sticker though. I will mention it to our shipping team so they can get that addressed. Having it on the tread is definitely a better idea. What kind of boat are you carrying?