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When you’re putting on real miles, this setup is ready for it. The Tamarack ST205/75R15 radial tire carries a 6-ply rating and handles up to 1,820 lbs at 50 psi. Its L speed rating gives you confidence up to 75 mph, while the radial design runs cooler and wears more evenly than bias tires. DOT and FMVSS compliance mean it’s built to highway standards from the start.
No extra steps before you tow. This tire-and-wheel assembly comes bead balanced at the factory using internal tire balancing beads, giving it a smooth, steady feel on the road without using external weights. That balance helps extend tread life and keeps vibration down at speed so your trailer tracks straight.
The 15" x 5" steel modular wheel is rated for 2,200 lbs and built to hold torque under load. Beveled stud holes help the wheel seat firmly on the hub so you’re not constantly re-torquing lug nuts. The silver powder coat finish over an e-coat primer resists rust for long-term durability and a clean look that holds up through wet or salty conditions.
Tamarack radial construction pairs double steel belts with double nylon plies and a tread-firming overlay that fights separation under stress. The tread design uses open ribs with sipes that channel water away, improving grip when the pavement turns slick or temperatures drop. It’s traction you can feel when weather doesn’t cooperate.

If a flat happens, complimentary roadside assistance covers you for two years, 24/7 across the U.S., Canada, and Puerto Rico. The tire also carries a 1-Year No Excuses Guarantee—damage it within the first year and it’s replaced at no charge, plus you’re reimbursed a flat labor rate for mounting the new one. That’s real backup when you need it most.
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:
98% were satisfied with this product
2% of customers were not satisfied
Ratings & Reviews

Patricia
8/19/2022
Great, exact match to tire and rim on trailer
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Jim
5/8/2024
Thankfully I havent had to use it!But I know if I do itll fit.