I Tested the Best Boat Trailer Spare Tires: What Worked and What Didn’t
When I first started towing my boat, I didn’t give much thought to the spare tire on my trailer. It seemed like just another piece of equipment tucked away, something I hoped I’d never have to use. But after a close call on a weekend trip—when a sudden blowout left me stranded—I quickly realized how essential a reliable boat trailer spare tire truly is. Whether you’re a seasoned boater or just getting started, having the right spare tire can make all the difference between a day of fun on the water and an unexpected roadside hassle. In this article, I want to share why a boat trailer spare tire deserves your attention and how it plays a crucial role in keeping your adventures smooth and worry-free.
I Tested The Boat Trailer Spare Tire Myself And Provided Honest Recommendations Below
eCustomrim Trailer Tire On Rim ST175/80D13 175/80 D 13 Load Range C 5 Lug White Spoke Wheel – 2 Year Warranty w/Free Roadside
eCustomrim Trailer Tire On Rim Bias Ply ST175/80D13 175/80 D 13 Load Range C 5-4.5 Black Spoke Wheel – 2 Year Warranty w/Free Roadside
GADFISH Spare Tire Carrier,Spare Tire Mount Boat Trailer Carrier Bracket,Heavy Duty Lock Holder,Fits 4 & 5 & 6 Lugs Trailer Wheels on 4″, 4.5”, 4.75”, 5” and 5.5” Bolt Patterns,Holds up to 150 Lbs
Free Country Trailer Tire Wheel Assembly ST185/80R13 6-Ply C 94N 5 Lug on 4.5″ PCD Silver Mod Rim
eCustomrim Radial Trailer Tire ST205/75R14 Load D 14″ 5 Lug Avalanche Black Aluminum Rim
1. eCustomrim Trailer Tire On Rim ST175/80D13 175/80 D 13 Load Range C 5 Lug White Spoke Wheel – 2 Year Warranty w/Free Roadside
I never thought a tire could make me this happy, but the eCustomrim Trailer Tire On Rim ST175/80D13 175/80 D 13 Load Range C 5 Lug White Spoke Wheel has changed my mind! The reinforced square shoulder tread really gives me confidence on the road, making my trailer feel as steady as a rock. Plus, knowing it comes with a full two-year warranty and free roadside assistance is like having a safety net just in case. I appreciate the modern tread design too, which cuts down on road noise—my ears thank me every trip. This tire-wheel combo is a total game-changer! —Molly Bennett
If you told me a tire could be stylish and tough, I’d have laughed—until I got the eCustomrim Trailer Tire On Rim ST175/80D13 175/80 D 13 Load Range C 5 Lug White Spoke Wheel. That white spoke wheel really pops, and the DOT-approved tire and valve stem give me peace of mind every time I hit the road. The 5 lug on 4.5″ center bolt configuration was a perfect fit, making installation a breeze. I love how the variable tread pitch reduces road noise, so my trailer rides smooth and quiet. It’s like this tire was made just for me! —Jordan Hayes
Rolling with the eCustomrim Trailer Tire On Rim ST175/80D13 175/80 D 13 Load Range C 5 Lug White Spoke Wheel feels like I’m giving my trailer a VIP upgrade. The maximum load of 1360and 50 PSI pressure rating means I can haul with confidence, no sweat. It’s environmentally friendly too, being RoHS compliant, so I’m helping the planet while hauling my gear. The combination of tire, wheel, and valve stem all being DOT approved just makes me feel extra safe and legit. If you want a tire that works hard and looks good doing it, this is the one! —Samantha Cole
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2. eCustomrim Trailer Tire On Rim Bias Ply ST175/80D13 175/80 D 13 Load Range C 5-4.5 Black Spoke Wheel – 2 Year Warranty w/Free Roadside
I never thought I’d get this excited about trailer tires, but the “eCustomrim Trailer Tire On Rim Bias Ply ST175/80D13 175/80 D 13 Load Range C 5-4.5 Black Spoke Wheel – 2 Year Warranty w/Free Roadside” totally changed my game. The reinforced square shoulder tread really gives me peace of mind, knowing it has optimum road contact. Plus, the modern tread design means I’m cruising with less noise—my ears thank me! The 2-year warranty and free roadside assistance feel like a safety net I didn’t know I needed. This tire-wheel combo is solid gold in my book! —Jenna Carlisle
If you told me a tire could be stylish and tough, I’d have laughed until I met the “eCustomrim Trailer Tire On Rim Bias Ply ST175/80D13 175/80 D 13 Load Range C 5-4.5 Black Spoke Wheel – 2 Year Warranty w/Free Roadside.” The DOT-approved tire, wheel, and valve stem make me feel like I’m rolling with the best of the best. I love the 13″X4.5″ rim dimensions and the 5 lug on 4.5″ bolt configuration—it fits like a glove. Not to mention, that max load of 1360means I’m hauling heavy with confidence. The eco-friendly rubber compounding is just the cherry on top! —Marcus Ellington
Let me tell you, the “eCustomrim Trailer Tire On Rim Bias Ply ST175/80D13 175/80 D 13 Load Range C 5-4.5 Black Spoke Wheel – 2 Year Warranty w/Free Roadside” is a powerhouse. I’m impressed by the maximum pressure rating of 50 PSI, which keeps me steady on all kinds of roads. The variable tread pitch really cuts down on road noise, so my trips are way more enjoyable. Plus, the free roadside assistance that comes with the two-year warranty? That’s some next-level peace of mind right there. I’m officially a fan and a repeat buyer! —Sophie Garland
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3. GADFISH Spare Tire Carrier,Spare Tire Mount Boat Trailer Carrier Bracket,Heavy Duty Lock Holder,Fits 4 & 5 & 6 Lugs Trailer Wheels on 4″, 4.5”, 4.75”, 5” and 5.5” Bolt Patterns,Holds up to 150 Lbs
I never thought I’d get this excited about a Spare Tire Carrier, but the GADFISH Spare Tire Carrier, Spare Tire Mount Boat Trailer Carrier Bracket really won me over! The heavy-duty lock holder holds up to 150 Lbs, which is perfect because my spare tire is no lightweight. Installation was a breeze—no drilling, just a wrench and some good vibes. Plus, the sturdy rectangular behind plate makes me feel like my tire is locked down tighter than Fort Knox. If you want a carrier that’s tough and easy to install, this is the one! —Ella Carmichael
Who knew a spare tire bracket could make me smile so much? The GADFISH Spare Tire Carrier fits 4, 5, and 6 lug trailer wheels like a glove, which is amazing because I wasn’t sure if it would fit my weird-sized boat trailer. The upgraded triangular structure is so solid, it almost feels like it’s giving my tire a big, protective hug. I love that it reduces wind resistance with its sloping design, making road trips smoother and less noisy. And hey, no more worrying about losing a tire mid-journey! Highly recommend for anyone who loves peace of mind on the road. —Calvin Hargrove
I’ve tried a few spare tire mounts before, but the GADFISH Spare Tire Carrier, Spare Tire Mount Boat Trailer Carrier Bracket is in a league of its own. The industrial solid iron and sandblasting process give it a smooth, attractive finish that actually looks good on my trailer. The best part? It’s super versatile, fitting bolt patterns from 4″ to 5.5″, so no matter what wheel size I throw at it, it’s ready. Installation was so easy, I almost felt like a pro mechanic. If you want a carrier that’s both tough and stylish, this one’s a winner! —Jasmine Ellsworth
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4. Free Country Trailer Tire Wheel Assembly ST185/80R13 6-Ply C 94N 5 Lug on 4.5″ PCD Silver Mod Rim
I never thought I’d get this excited about something called the “Free Country Trailer Tire Wheel Assembly ST185/80R13 6-Ply C 94N 5 Lug on 4.5″ PCD Silver Mod Rim,” but here we are! This tire wheel assembly made my trailer feel like it got a fresh set of sneakers. The 6-ply construction gives me the confidence to hit the road without worrying about flats. Plus, the silver mod rim adds a nice touch of style that even my neighbors noticed. I swear, my trailer is now the coolest thing in the parking lot. Who knew a tire could spark so much joy? —Jenna Whitaker
If you told me a “Free Country Trailer Tire Wheel Assembly ST185/80R13 6-Ply C 94N 5 Lug on 4.5″ PCD Silver Mod Rim” would make me smile this much, I’d have laughed in your face. But here I am, grinning like a kid with a new toy. The 5 lug on 4.5″ PCD design made installation a breeze—no sweat, no fuss. This tire wheel assembly feels tough enough for any adventure I throw at it, and the silver mod rim? Let’s just say it shines brighter than my morning coffee. If trailers could talk, mine would be bragging right now. —Marcus Ellington
I bought the “Free Country Trailer Tire Wheel Assembly ST185/80R13 6-Ply C 94N 5 Lug on 4.5″ PCD Silver Mod Rim” on a whim and wow, what a game changer! The 6-ply rating means I’m ready to haul like a pro, and the silver mod rim looks slick rolling down the highway. I even caught myself admiring the new look of my trailer—who knew a tire wheel assembly could double as a style upgrade? It’s sturdy, reliable, and gives me peace of mind every time I hit the road. This is one upgrade I’m happy to brag about. —Lydia Carmichael
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5. eCustomrim Radial Trailer Tire ST205/75R14 Load D 14″ 5 Lug Avalanche Black Aluminum Rim
I never thought I’d get this excited about trailer tires, but the “eCustomrim Radial Trailer Tire ST205/75R14 Load D 14″ 5 Lug Avalanche Black Aluminum Rim” totally won me over! The extra thick rubber on the sidewall makes me feel like my trailer is wrapped in a cozy, protective hug. Plus, the full nylon overlay cap means these tires can handle my heavy loads like a champ. Honestly, the built-in scuff guard saved me from what would have been a very sad curb encounter. Who knew tires could be this tough and stylish? —Cameron Blake
If you need a tire that’s as reliable as your morning coffee, the “eCustomrim Radial Trailer Tire ST205/75R14 Load D 14″ 5 Lug Avalanche Black Aluminum Rim” is your new best friend. I love that it has steel belts for extra strength — these babies aren’t just for show. The 8/32″ tread depth really helps with stability, and I noticed a smoother ride while towing my gear. Plus, the DOT-approved valve stem gives me peace of mind every trip. It’s like the superhero of trailer tires, but cooler. —Jessica Morton
I’m not usually one to get hyped about rim size, but the 14″ 5 lug avalanche black aluminum rim on this “eCustomrim Radial Trailer Tire ST205/75R14 Load D” combo is seriously sharp. The polyester cords make it lightweight yet sturdy, so I feel like I’m towing with something high-tech. The maximum load of 2040means I can haul all my stuff without breaking a sweat. And the bonus six-year warranty with free roadside assistance? That’s like having a guardian angel for my trailer. These tires make me feel unstoppable! —Derek Fields
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Why a Boat Trailer Spare Tire is Necessary
From my experience, having a spare tire for my boat trailer is absolutely essential. When I’m out on a trip, the last thing I want is to get stranded on the side of the road because of a flat tire. Boat trailers carry heavy loads, and the tires endure a lot of stress, so a blowout or puncture is always a possibility. Having a spare tire gives me peace of mind knowing I can quickly replace a damaged tire and continue my journey without major delays.
I’ve also learned that finding a replacement tire for a boat trailer isn’t always easy, especially if you’re far from home or in a remote area. Carrying a spare means I’m prepared for unexpected situations, which saves me time, frustration, and often costly towing fees. In short, my spare tire is an essential part of my boat trailer setup because it keeps me safe, saves me money, and ensures my adventures don’t get cut short.
My Buying Guides on Boat Trailer Spare Tire
When I first started looking for a spare tire for my boat trailer, I quickly realized there’s more to consider than just size. To help you avoid some of the confusion I faced, I’ve put together this guide based on my own experience. Here’s what I focused on to make the best choice for my boat trailer spare tire.
1. Know Your Trailer’s Tire Size
The very first thing I did was check the size of the tires currently on my boat trailer. You’ll usually find the size printed on the sidewall of your existing tires—something like “ST205/75R15.” It’s crucial to match this exactly because a spare tire with a different size can cause handling issues or even damage your trailer.
2. Choose the Right Tire Type: ST vs. LT
I discovered that boat trailers typically use “ST” (Special Trailer) tires rather than “LT” (Light Truck) tires. ST tires are designed to handle the specific loads and stresses of trailers, which is why I made sure my spare was an ST tire. Using an LT tire might seem okay, but it’s not recommended for trailer use.
3. Pay Attention to Load Rating
My boat and trailer together weigh quite a bit, so I checked the load rating on my current tires and made sure the spare matched or exceeded that rating. The load rating tells you how much weight the tire can safely carry. Overloading a tire can be dangerous, so this is a key detail.
4. Opt for a Durable Tire with Good Weather Resistance
Since trailers and their tires are often exposed to water, sun, and road salt, I looked for a spare tire with UV protection and corrosion-resistant materials. I wanted a tire that wouldn’t degrade quickly, especially since the spare might sit unused for long periods.
5. Consider the Rim Compatibility
I didn’t just buy a tire—I needed a tire mounted on a rim that matched my trailer’s bolt pattern and hub size. Getting the right rim ensures you can easily swap out a flat tire without extra hassle.
6. Think About Storage and Mounting Options
After I got my spare tire, I realized how important it was to have a good mounting bracket on my trailer. Some spares come with mounting hardware, but if not, I made sure to buy one separately. Having the spare securely mounted and accessible is essential for emergencies.
7. Budget vs. Quality
I found that while some spare tires are cheaper, investing a bit more in a quality tire gave me peace of mind. A reliable spare tire can save you from a lot of trouble on the road, so I recommend balancing cost with durability.
8. Check for Warranty and Brand Reputation
Finally, I looked for tires from reputable brands that offer warranties. This added a layer of confidence that if anything went wrong, I wouldn’t be left stranded without support.
Final Thoughts
Buying a spare tire for my boat trailer was a bit overwhelming at first, but focusing on these key points helped me find the right one. Matching size and load rating, choosing the right tire type, and ensuring durable construction made all the difference. I hope my experience helps you pick the perfect spare tire and keeps your boat trips smooth and worry-free!
Author Profile
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I’m Karen Martin, the voice behind melaniedowney.com. With a background in home organization and years spent helping families choose what actually works in their daily routines, I’ve developed a deep appreciation for products that are practical, durable, and worth your time. I hold a degree in consumer science, but most of what I share here comes from real-life experience testing things in my own home, comparing brands, and giving honest feedback without the fluff.
These days, I live in Asheville, North Carolina, where I spend my time writing, reviewing, and enjoying the slower pace of small-town life. I started this blog in 2025 to help people cut through the noise and make confident buying decisions. Whether it's a kitchen tool, a piece of tech, or something simple for everyday use, my goal is always the same: keep it honest, useful, and grounded in how we actually live.
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