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Provider ST225/75R15 Trailer Tire with White Mod Wheel - 5 on 4-1/2
Taskmaster

Provider ST225/75R15 Trailer Tire with White Mod Wheel - 5 on 4-1/2

Part Number: A225R645WM
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$213.10
Retail:$226.20
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Trailer Tires and Wheels
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Radial tire with automotive-grade tread has an 8-ply rating and 2,540-lb max load at 65 psi. Rust-resistant 3-step powder coat. Complimentary roadside assistance included. Assembly is match mounted and balanced providing longevity and a smooth ride. Great Prices for the best trailer tires and wheels from Taskmaster. Provider ST225/75R15 Trailer Tire with White Mod Wheel - 5 on 4-1/2 part number A225R645WM can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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Taskmaster Trailer Tires and Wheels - A225R645WM

  • 15 Inch
  • Tire with Wheel
  • 5 on 4-1/2 Inch
  • 225/75-15
  • Load Range D
  • Steel Wheels - Powder Coat
  • Radial Tire
  • M - 81 mph
  • Taskmaster

Radial tire with automotive-grade tread has an 8-ply rating and 2,540-lb max load at 65 psi. Rust-resistant 3-step powder coat. Complimentary roadside assistance included. Assembly is match mounted and balanced providing longevity and a smooth ride.


Features:

  • Tire-and-wheel assembly is ideal for stock trailers, utility trailers, and campers
  • Match mounted and balanced for longevity and a smooth ride
    • Reduces vibration and the wear and tear it can cause
  • Steel wheel with modular design is sturdy and corrosion resistant
    • 3-Step finishing process includes zinc phosphate bath, e-coat primer, and white powder coat on outboard side
    • Inboard side is lightly e-coated to reduce friction and provide rust resistance with less flaking
  • Improved torque retention (ITR) technology helps to keep wheel securely in place on your trailer
    • Uncoated stud holes are beveled to offer better clamp force retention
  • Radial tire is constructed with double steel belts and double polyester cords for a long life
    • Great for highway use
    • Nylon tread-firming belt overlays help prevent tread separation
    • Tread depth bars offer a quick visual indicator of tread wear
    • Bake tested to ensure that the rubber holds over time
  • Automotive-grade tread has sipes that channel water away from the tire to improve traction during wet, snowy, or icy conditions
  • Special trailer tire design couples the strength of a bias tire with the durability and stability of a radial tire
    • Created specifically for trailers and not intended for use on other vehicles
  • 2-Year Platinum Plus warranty includes emergency tire change service and other benefits
  • Assembly meets DOT specifications and exceeds FMVSS


Specs:

  • Tire size: ST225/75R15
    • Section width: 8.78"
    • Outer diameter: 28.31"
  • Wheel dimensions: 15" diameter x 6" wide
  • Bolt pattern: 5 on 4-1/2"
    • Wheel bolt size: 1/2"-20
  • Pilot diameter: 3.31"
  • Capacity: maximum combined tire and wheel: 2,540 lbs
    • Wheel capacity: 2,830 lbs
    • Tire capacity:
      • Load range: D
      • Ply rating: 8
      • Maximum load: 2,540 lbs at 65 psi
  • Maximum speed: 81 mph (speed rating M)
  • 2-Year limited warranty


Platinum Plus Warranty with Roadside Assistance

This tire-and-wheel assembly comes with a Platinum Plus warranty that includes complimentary roadside assistance for 2 years. If your trailer has a flat tire, call the help line and a technician will come change out the flat tire with your existing inflated spare tire. The service is available 24 hours a day, 7 days a week. In addition to the roadside assistance, this warranty also includes other benefits and services.


Corrosion-Resistant Finish

The steel wheel goes through a 3-step finishing process that makes it both attractive and corrosion resistant. The wheel is first submerged in a zinc phosphate bath to ensure good paint adhesion. It is then e-coated with an acrylic primer base and the outboard side is finished with baked-on DuPont powder paint. The light e-coat on the inboard side of the wheel reduces friction between the wheel and your hub and eliminates the flaking that can occur with a heavily applied paint finish.


Improved Torque Retention Technology

Beveled Stud Holes Front and Back

The automotive-rated center disc is raised and the stud holes are beveled and uncoated for better clamp force retention. This technology helps the wheel stay tight against your hub without the need for constant retightening.


Provider Radials with Automotive-Grade Tread

Provider Tread Vs Standard Tread

Unlike standard trailer tire tread, which has solid, continuous ribs, the automotive-grade tread on these Provider radials has ribs with breaks. These breaks allow water to run off to the sides. The Provider tread also has sipes. Siping is a process in which thin grooves (or sipes) are cut into the rubber of the tire. The grooves channel water away from the tread so that the tire makes better contact with the road. Both of these features greatly improve traction during wet, snowy, or icy conditions.


Provider radials are constructed with double polyester cords and double steel belts for increased durability and endurance. A protective layer of nylon is wrapped around the steel belts to help prevent tread separation. Provider radials are bake tested - a process usually reserved for automotive tires - to ensure that the rubber holds up over time.


Match Mounted and Balanced Trailer Tire Assembly

In an ideal world, tire-and-wheel assemblies would be perfectly round and even throughout. Unfortunately tires and wheels have imperfections that often cause vibrations, resulting in a rough ride and wear and tear on the assemblies, as well as on the rest of your trailer's running gear. Taskmaster helps to solve this problem by match mounting and balancing their assemblies so they're ready to roll when they reach your door.


To do this, Taskmaster uses a laser-guided machine to locate the heavy and light spots of each assembly. They then align the assembly so that lightest part of the tire is near the heaviest part of the wheel. The assembly is then rotated at high speeds to pinpoint the optimal place to apply weights to further balance the tire.


Don't delay your adventures by having to take your trailer to the shop for new tires. Start rolling as soon as possible with easy-to-install, fully balanced tire-and-wheel assemblies from Taskmaster.


Radial Tires vs. Bias Tires

Radial tire vs bias tire graphic

Radial ply tires are designed for trailers that are towed on the highway. The cords on a radial tire are positioned at a 90-degree angle to the direction of travel so that they lay across the width of the tire from wheel lip to wheel lip. This construction prevents the cords from rubbing against one another when the tire flexes, unlike the cords on a bias ply tire. As a result, radial tires have less rolling resistance and heat buildup, which leads to a longer tread life and improved steering at higher speeds.


Determining the Bolt Pattern

The first number in the bolt pattern is the number of bolt holes. The second number denotes the diameter, in inches, of the circle on which the bolt holes sit.


Bolt Pattern - Odd

To determine the bolt-circle diameter on wheels with an odd number of bolt holes, measure from the center of any bolt hole to the point halfway between the two bolt holes directly across from the first. (Example: "5 on 4-1/2" means 5 bolt holes with 4-1/2" measured to a point halfway between the opposite bolt holes.)


Bolt Pattern - Even

On wheels with an even number of bolt holes, measure from the center of one bolt hole to the center of the hole directly across from it. (Example: "8 on 6-1/2" means 8 bolt holes with 6-1/2" from the center of one hole to the center of another on the opposite side.)


Bolt Pattern - Side

Measuring the distance from the center of one bolt hole on the wheel to the center of a bolt hole right next to it can also help to determine the bolt pattern.

  • If D = 2-5/8", then the bolt pattern is 5 on 4-1/2"
  • If D = 2-3/4", then the bolt pattern is 5 on 4-3/4"
  • If D = 3", then the bolt pattern is 5 on 5"
  • If D = 3-1/4", then the bolt pattern is 5 on 5-1/2"


P-22575R150D-M-60545WM-T Taskmaster Provider ST225/75R15 Radial Tire with White Modular Rim - 5 on 4.5 - LR D

Replaces A225R645WMM





Customer Satisfaction Score:

Ratings & Reviews

4.9

1123 reviews
Radial tire with automotive-grade tread has an 8-ply rating and 2,540-lb max load at 65 psi. Rust-resistant 3-step powder coat. Complimentary roadside assistance included. Assembly is match mounted and balanced providing longevity and a smooth ride.

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Show More Reviews

See what our Experts say about this Taskmaster Trailer Tires and Wheels

  • Recommendation to Replace 205/75R14 Tires on Mallard Camper
    Hi Jeff! So the only combo with the 5 on 4-1/2 inch bolt pattern we have that provides that Load Range E rating is the Taskmaster Provider # TA56AR. It doesn't look like that tire is available by itself, either. This would certainly give you more than enough capacity with its 2,830 pound rating, but other than extra peace of mind (which is indeed valuable), I'm not sure you really need to upgrade. The Provider # A225R645WM you were looking at is still going to give you a combined load...
    view full answer...
  • Recommended Trailer Tires to Replace 235/75R15 Tires
    It looks like the previous owner of the trailer had vehicle tires installed since there are very few trailer tire manufacturers that carry a 235/75R15 size. Even though it might work for a while, trailer tires are always better to use for trailer applications. Trailer tires have a stronger sidewall and can be identified by the letters ST before the tire size. For example, the Taskmaster Provider # A225R645WM has a tire size of ST225/75R15. Since people are not meant to ride in the back...
    view full answer...
  • Trailer Tire Size ST225/75-15 Load Range D Mounted on White Wheel 5 Lug Wheel
    Hey Joe, in the tire size of 205/75-15 with a bolt pattern of 5 on 4-1/2 inch and Load Range D there isn't anything on a white wheel. But we do have the part # A225R645WM which is the slightly larger size of 225/75-15 that is on a white wheel and is a Load Range D.
    view full answer...
  • Replacement Hub and Drum With 25580 Inner Bearing and LM67048 Outer Bearing
    Thanks for that info and we do have a replacement hub and drum for you with inner bearing # 25580 and outer bearing # LM67048, though you are going to need to take one more measurement, and with Digital Caliper # 301-17068 because it needs to be measured down to the thousandth of an inch. So, the correct hub and drum will depend on the size of the grease seal, and you'll need to measure your spindle where the seal rides to get that measurement. - 2.25" Diameter: Dexter Trailer Hub and...
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  • Can a 225/75R15 Trailer Tire Be Used in Place of a 205/75-15 Trailer Tire
    All of our wheel/tire combos come pre-balanced to an extent. The heavy spot on the wheel is aligned with the light spot on the tire to create a balance that is sufficient for use on trailers. They are not completely balanced and will need to be taken to a reputable shop to be zeroed out should you choose but the light/heavy spot method will be more than sufficient for most trailers. The Provider ST225/75R15 Radial Tire w/ 15" White Mod Wheel part # A225R645WM does not come with a metal...
    view full answer...
  • Do You Have a Goodyear Endurance ST225/75R15 Tire w/ a Steel White Mod Wheel?
    Hey Ron, welcome back. I have the wheel and alternate tire but we do not carry Goodyear Endurance tires anymore. For just the wheel you'll want the Dexstar Steel Mini Mod Trailer Wheel item # AM20551. This is a 15" x 6" rim with a 5 on 4-1/2 bolt pattern. For a wheel and tire combo, I recommend the Provider ST225/75R15 Trailer Tire with White Mod Wheel - 5 on 4-1/2 item # A225R645WM. The Provider tire is a load range D tire with a 2,540 lbs capacity at 65 psi. What kind of trailer do...
    view full answer...
  • Recommended Trailer Tires to Replace 225/75-14 Tires
    For your 14 inch wheels, I recommend the Provider ST215/75R14 Radial Trailer Tire - Load Range D # TTWTRTM2157514D. This is a slightly smaller tire, but it is very well made. It is rated for 2,200 lbs at 65 psi and has a max speed rating of 81 mph. It has automotive grade sipes to channel water away for better traction. This will give you an outer diameter of 27 inches. If you bump up to the 15 inch wheel, you will have a 28.31 inch diameter using the Provider ST225/75R15 Radial Trailer...
    view full answer...
  • Upgrading 13" Tires And Wheels To 15" Tires And Wheels
    It may be possible to upgrade your 13" wheels and tires to 15". We do carry 15" five lug wheels. So as long as the hubs on your trailer use a standard 5 bolt pattern, like 5 on 4-1/2", then you can mount 15" wheels no problem. There is no adapter that is made or needed for this purpose. The main factory we need to consider is fender clearance. In a lot of cases, placement of the trailer fender will limit how big of a tire you can put on. Our rule of thumb is that we want at least 3" between...
    view full answer...
  • Recommended Tires for Old Airstream Travel Trailer 24 Feet Long Single Axle 2800 lbs Empty
    We do not carry 14-1/2 inch tires or wheels. If you want to upgrade to 15 inch wheels, I recommend the Provider ST225/75R15 Radial Trailer Tire w/ 15" White Spoke Wheel - 6 on 5-1/2 - LR D # TA84VR. These combinations are rated for 2,540 lbs at 65 psi and speeds up to 81 mph. They also come with the 2 year warranty with complimentary roadside assistance. If you need the 5 on 4-1/2 inch bolt pattern, then use # A225R645WM which will keep the other specs except it has a white wheel...
    view full answer...
  • Can I Replace 13 Inch Trailer Wheels with 15 Inch Wheels
    You can increase the size of the wheels on your trailer from 13 inch to 15 inch rims. However, you need to keep in mind the larger size will take up more space and you can run into clearance issues. The ST225/75R15 Taskmaster Providers your referenced are 8.78 inches wide and have a diameter of 28.31 inches. Without knowing exactly what tire size you have right now I can't say specifically but it's possible the new set will increase the width by 1-1/2 inches and diameter by up to 6 or...
    view full answer...
  • What Does Modular Mean in Relation to Trailer Wheel
    The term modular refers to the style of holes that you see in the rim. The mod or modular wheels have 10 smaller holes that are just to the outside of the mounting flange. It's basically an appearance thing. Spoke wheels have more triangular holes in that location.
    view full answer...
  • Tire and Wheel Combinations for ST225/75R15 with 5 on 4-1/2 Inch Bolt Pattern
    You can absolutely use a ST225/75R15 tire on a 15 inch rim with 5 on 4-1/2 bolt pattern. We actually have many options with this combination. I've attached a link to all of these options for you. One of the most popular options with our customers is the Provider ST225/75R15 Radial Trailer Tire w/ 15" White Mod Wheel # A225R645WM which not only is a nice-looking combination but comes with a 2-year warranty that includes roadside assistance 24/7.
    view full answer...
  • Torque Specs for 1/2 Inch Lug Nuts on a 15 Inch Steel Trailer Wheel
    For a 15 inch steel trailer wheel that uses 1/2 inch lug nuts like the one in tire and wheel combo # A225R645SWM the lug nuts should be torqued to 90 to 120 foot pounds. I have also included a picture of a handy lug nut torque chart for reference. If you need a torque wrench for this, then # ALL944001 will work. It is rated for 10 to 150 foot pounds.
    view full answer...
    Image 1 for
  • Torque Rating for the Provider ST225/75R15 Radial Trailer Tire and 15 Wheel
    We actually have a standard torque chart for lug nuts on trailer wheels. The 15" wheel that comes with the Provider ST225/75R15 Radial Trailer Tire # A225R645WM uses 1/2" - 20 lugs with a 60-degree cone. When looking at the chart you can see that the lug nuts, like part # AM26NR, will need to be torqued to 90-120 ft-lbs.
    view full answer...
    Image 1 for
  • Spare Wheel and Tire Recommendation for 2018 Coleman 262BH
    I pulled up as much info as I could for your 2018 Coleman 262BH and found that it has 15 inch wheels and since you said it has a 5 on 4-1/2 inch bolt pattern that means you either have a 225/75-15 and would need part # A225R645WM or you have a 205/75-15 and the part # MX97FR would be what you need.
    view full answer...
  • Wheel and Tire Recommendation for Tear Trailer Built on Harbor Freight Haul Master
    For a trailer you have to use wheels specifically designed for trailer. Passenger vehicle wheels and tires are not rated for trailer so they should not be used. Best option we have would be the part # A225R645WM which is a 225/75-15 radial tire mounted to a 15-inch wheel with a 5 on 4-1/2 inch bolt pattern. This tire also has a higher than usual speed rating for trailer tires at 81 mph.
    view full answer...
  • Speed Rating of Taskmaster ST225/75R-15 Radial Trailer Tires
    The Taskmaster ST225/75R-15 bias ply tire you mentioned, part # A225R64WM carries an M speed rating, up to 81 miles an hour. Trailer tires don't carry a tread wear and heat rating like passenger car tires do, because they're only meant for use on a trailer. I've linked to our FAQ article on trailer tires, which you might find helpful.
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  • How to Select Spare Tire/Wheel for Trailer
    We can help you select a 15 x 6-inch wheel/tire for use as a spare on your trailer. Please refer to the linked page which shows you our 15-inch wheel/tire combination products. You'll just want to click on the filters on the page to select 1) the correct bolt pattern (please see the linked article), 2) tire size (which will appear on your current tires' sidewalls) and 3) your Load range. You can also select the wheel material (steel or aluminum) and the tire type you prefer, bias ply or...
    view full answer...
  • Are Your Tire and Wheel Combinations Already Balanced and Ready for the Road?
    Our Tire and Wheel combinations are in fact ready for the road. They are not, however balanced in the way you may think of a car or truck tire. The way ST trailer tires are designed is different and their use is different from vehicle tires. You don't need to add weights to the rim or spin the ST tires for balance. There is a "light" point to each tire and a "heavy" point to each wheel. The manufacturer matches those points to give the ST tires "balance". This makes the tires absolutely...
    view full answer...
  • What Lug Nuts for Use with Provider ST225/75R15 Radial Tire w/ 15 Steel Mod Wheel
    The trailer wheel part # A225R645WM was designed to be used with 60 degree lug nuts part # AM26NR.
    view full answer...
  • Tire Clearance Upgrading From 205/75R14 To 225/75R15 Tires On Trailer
    Based on the fact that you have 4.5" of clearance on top of your tire right now this shouldn't be a problem. An ST205/75R14 tire like the # AM10235 has an outer diameter of 26.3" with an 8.1" section width. The Karrier ST225/75R15 Radial Trailer Tire # AM10256 has an outer diameter of 28.4" with an 8.9" section width. Switching to the larger tire in this instance would mean losing 1.05" on top and .40" on the inside of the tire. You want at least 3" on the top and 2" on the inside of the...
    view full answer...
  • Replacement Wheel and Tire and Weight Distribution for a 1985 Avion 25 ft Trailer
    For a replacement wheel and tire that would fit best for replacing the 7.00-15LT you have on your trailer you would want the part # A225R645WM. This is a ST225/75R15 radial tire mounted on a 15-inch trailer wheel with the 5 on 4-1/2 bolt pattern you need. This will end up being about an inch shorter in diameter but would be a great option still. Unlike most trailer tires these are rated for up to 81 mph. These tires are also rated for 2,540 lbs at 65 psi. Check out the review video I attached...
    view full answer...
    Image 1 for
  • When OEM Wheels Have Offset Can Replacement Wheels Without Offset Work?
    The Provider ST225/75R15 Radial Trailer Tire and Wheel # A225R645WM most likely will not fit because it is a larger wheel than comes with your Master Tow Dolly. From what I can find, the dolly comes with ST205/75D14 tires, so the Westlake ST205/75R14 Radial Trailer Tire w/ 14" Silver Mod Wheel - 5 on 4-1/2 - Load Range D # 274-000053 will be a more viable option and has a much better warranty. Due to the offset you mentioned, you would need to measure from the face of the hub a little...
    view full answer...
  • Spare 15" Tire and Wheel for 2021 Diamond Cargo Trailer
    We do have spare radial wheel and tire combinations. I'm assuming you either have 225/75-15 or 205/75-15 tires on their now. After looking at pictures it looks like the two main wheels the trailer manufacturer uses are a white or a silver mod wheels. I recommend one of the following: -Provider ST225/75R15 Radial Trailer Tire w/ 15" Vesper Silver Mod Wheel - 5 on 4-1/2 - LRD # TA86MR -Provider ST225/75R15 Radial Trailer Tire w/ 15" White Mod Wheel - 5 on 4-1/2 - Load Range D # A225R645WM -Provider...
    view full answer...


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Info for this part was:

Employee Leah B
Edited by:
Leah B
Employee Jeff D
Installed by:
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Employee Dustin K
Video Edited:
Dustin K
Employee Mary K
Written by:
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Updated by:
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