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When you’re rolling loaded for long hauls, this tire-and-wheel assembly is built to stay steady at speed. The Karrier ST225/75R15 radial tire carries a maximum load of 2,540 lbs at 65 psi and is rated M for 81 mph. Its radial construction combines double steel belts with full nylon plies to cut down heat buildup and rolling resistance, so tread life stays long and performance stays smooth mile after mile.
This combo brings together a stout 15" x 6" black steel wheel rated for 2,600 lbs and an 8-ply tire that’s ready for heavy-duty towing. The steel rim has a 6 on 5-1/2" bolt pattern, 1/2"-20 bolt size, and 0 offset for solid balance under load. Every piece meets Department of Transportation specs, giving you confidence when the trailer’s full and the road stretches far ahead.
Salt, moisture, and road grime don’t stand a chance. The conventional black steel wheel uses a tough powder coat finish that keeps rust at bay while adding a clean look that fits right in on modern or older setups. It’s the kind of finish that handles both freshwater ramps and long highway runs without showing its age.
Skip the extra steps—this Karrier tire comes already mounted on the wheel, inflated, and balanced for straightforward installation. With the correct 3.65" pilot diameter and no offset to worry about, it’s ready to bolt up and roll right out of the box.
Kenda covers this tire for a full year under their worry-free guarantee—if it’s damaged in the first 12 months, it’s replaced at no charge. Combined with a 5-year tire warranty and limited 1-year wheel warranty, it’s reassurance that this setup is made to hold up for the long run.
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:
99% were satisfied with this product
1% of customers were not satisfied
Ratings & Reviews
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William
8/26/2026
Were heading into year 3, 24 camping trips in. The tires are still like new... still! Tread wear is negligible and, as I keep the tires covered when parked, I have no dry rot or checking of any kind.