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Vesper Steel Modular Trailer Wheel - 15" x 5" - 5 on 4-1/2 - Black

Vesper Steel Modular Trailer Wheel - 15" x 5" - 5 on 4-1/2 - Black

Item # MX34FR
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Shipping Weight: 18 lbs
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This 15" x 5" steel trailer wheel has a 5 on 4-1/2 bolt pattern and a 3.19" pilot diameter. Improved torque retention keeps wheel secure when mounted on your axle. Acrylic enamel finish resists damage better than powder coat finishes. Lowest Prices for the best trailer tires and wheels from Taskmaster. Vesper Steel Modular Trailer Wheel - 15" x 5" - 5 on 4-1/2 - Black part number MX34FR can be ordered online at or call 1-800-940-8924 for expert service.
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Taskmaster Trailer Tires and Wheels - MX34FR

  • Wheel Only
  • 15 Inch
  • 5 on 4-1/2 Inch
  • Steel Wheels - Acrylic Enamel
  • Taskmaster

This 15" x 5" steel trailer wheel has a 5 on 4-1/2 bolt pattern and a 3.19" pilot diameter. Improved torque retention keeps wheel secure when mounted on your axle. Acrylic enamel finish resists damage better than powder coat finishes.


  • Steel wheel with modular design is sturdy and rust resistant
  • Black acrylic enamel finish resists chipping and other damage better than powder coat finishes
    • Finish is applied after a zinc phosphate pre-treatment and covers an e-coat primer layer
    • Excellent corrosion resistance with a salt spray rating of more than 1,000 hours
  • 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
  • Valve stem is included
  • Wheel meets SAE J1204 standards


  • Rim dimensions: 15" diameter x 5" wide
  • Bolt pattern: 5 on 4-1/2"
  • Wheel bolt size: 1/2"-20
  • Capacity: 2,160 lbs
  • Pilot diameter: 3.19"
  • Offset: 0
  • 2-Year limited warranty

Durable Acrylic Enamel Finish

Maxion Wheels Vesper Acrylic Enamel Finish

This wheel has a durable acrylic enamel finish on the front. The finish is applied after the wheel goes through an environmentally safe zinc phosphate pre-treatment and is coated with an e-coat primer layer. Compared to powder coat finishes, this finish resists getting chipped from flying road debris or scraped from hitting a curb for a longer period of time. These acrylic enamel wheels performed for more than 1,000 hours in salt spray tests.

Improved Torque Retention Technology

Maxion Wheels Vesper Improved Torque Retention

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.

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"

MX550545BM1 Vesper by Maxion Wheels 15x5 Steel Modular Rim - 5 on 4.5 - Black

Replaces Taskmaster 550545BM1

Video of Vesper Steel Modular Trailer Wheel - 15" x 5" - 5 on 4-1/2 - Black

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.

Video Transcript for Review of Maxion Wheels Trailer Tires and Wheels - Vesper Wheel Only - MX34FR

Jeff: Hello everybody. This is Jeff at Today, we're going to take a look at this 15 inch by five inch Vesper black modular steel trailer wheel with the five on four and a half inch bolt pattern. Now, this Vesper steel wheel's a modular design. When we say modular design, that's the one that has the round holes all the way around the wheel. It's very sturdy and rust resistant.

They do use a nice black acrylic enamel finish to help resist chipping and other damage. Better than your standard powder coat finishes. This finish is applied after a zinc phosphate pre-treatment and then an e-coat primer layer. This will give you excellent corrosion resistance. Has a salt spray rating of more than a thousand hours.

It does use the ITR technology, which means improved torque retention. This is designed to help keep your wheel securely in place on your trailer. Uses the uncoated stud holes here, which are beveled to give you better clamp force retention.You'll notice the valve stem is included. This wheel does meet the SAE J1204 standards. A few specs on this: we're going to measure the wheel.

The diameter is 15 inches, and when you measure the diameter, it's always measured inside to inside. If we take our tape measure, and if we go across inside to inside, you can see 15 inch for the diameter. The width will be the same way: it's bead seat to bead seat, so inside to inside is right at five inches wide. Now, the bolt pattern on this wheel is a five on four and a half inch bolt pattern. And if you want to measure that on a wheel, it's an odd number of lugs like in this case five.

You just pick any one of the holes let's say this one, and then you'll measure across to either one of these holes.But when you measure it, it's from the center of the starting hole to the furthest edge of the hole that you measure to. So if we measure this one, it'd be four and a half inches, so it's five on four and a half inch bolt pattern.The wheel lug size this uses is a half inch by 20. And the weight capacity on this wheel is 2,160 pounds. Last thing I want to mention is the pilot hole diameter. The diameter of this opening is 3.19 inches. And this goes over the hub on your trailer, but it's also where if you need a center cap. Now, this wheel does not come with a center cap. If you want to purchase one, we do sell those separately. The center caps will usually fit through the rear, and then you put the wheel up on there. It gives you a nice finish look. Now, the center cap, you do need to make sure you purchase would have a diameter of that 3.19 inches. But that should do it for the review on the 15 inch by five inch Vesper black modular steel trailer wheel, with the five on four and a half inch bolt pattern.

Customer Reviews

Vesper Steel Modular Trailer Wheel - 15" x 5" - 5 on 4-1/2 - Black - MX34FR

Average Customer Rating:  4.8 out of 5 stars   (270 Customer Reviews)

This 15" x 5" steel trailer wheel has a 5 on 4-1/2 bolt pattern and a 3.19" pilot diameter. Improved torque retention keeps wheel secure when mounted on your axle. Acrylic enamel finish resists damage better than powder coat finishes.


Learned about from my trailer dealer. Needed a spare tire for my trailer and preferred a matching rim. My trailer dealer didn't sell tired or rims , but pointed me to this website. It was easy to follow and order. My trailer dealer gave me the size to look for and it was easy to find and price was in line with what I expected. The order arrived two days earlier than stayed which was fine by me. I purchased my tire locally and had it mounted as well. I would highly recommend this site for your trailering needs and accessories.


The product looks very good. I am yet to put my tires on them but will shortly. I believe they will make the trailer look much better with these rims on it.


Arrived fast. Incredible. I live in the middle of Wyoming, so that speaks for itself.
Product was as advertised, and came well protected in the shipping container.
Zero issues with e Trailer and customer service.If I could, I'd give them six stars


I bought 5 of these wheels, they are well made and look great. But better than the wheels is the quick shipping and excellent customer service.


best priced for that wt. rating, came with valve stems installed, timely delivery

trouble free
Thomas - 04/12/2022


A+++ service!! Very quick shipping!!! Would definitely recommend for all your trailer needs!!!!


Look great and shipped fast! No complaints here


Wheels were a perfect fit, just like the description. They look great and get the job done with ease. Would definitely buy these again.


Very well made Mod wheel. Exactly like my trailer. Bought it as a matching spare. Highly recommend!


These are very nice wheels and they arrived in 5 days.


Very nice! The Finnish is outstanding. Perfect


Service at etrailer is over the top excellent as always. Emily made sure the wheels would get to me on time for an upcoming trip.


Quick, easy and got exactly what I want ed!!!


Fast shipping and it was exactly what I was looking for Thanks


Great wheels and fast service! Worked well for me.


Great overall selection and fast shippi ng!


Great price. Fast delivery. Responsive customer service following up to ensure delivery. And product as advertised. Five stars. Thank you.


They came when said and are a nice addition to an old hauler.


Great quality rims!! Fast shipping


Overall satisfied. I would only suggest a faster service for shipping. Especially after being notified that my shipping was upgraded for free and still took 5 days to receive.


Like the look,color, and weight





Show More Reviews

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

  • Available 15-Inch Trailer Wheels with 5-on-4-1/2-Inch Bolt Pattern
    For a 15-inch trailer wheel or wheel-with-tire with the 5-on-4-1/2-inch bolt pattern we have many options shown on the linked page, including the wheel you referenced, part # MX34FR. These 15-inch trailer wheels include 15 x 5 and 15 x 6-inch sizes. Please note that a ST235/75R15 size tire will not fit on this 15 x 5-inch wheel; this tire width requires a 6-inch or wider trailer wheel. However, an ST205/75R15 tire will fit on a 15 x 5-inch wheel.
    view full answer...
  • Can A 225/75/15 Tire Fit On A Vesper 15 inch x 5 inch Rim
    Yes, The Vesper Steel Modular Trailer Wheel # MX34FR will fit your 225/75/15 tires. They will fit a 5, 5-1/2, 6, 6-1/2 or 7 inch wide wheel. The Vesper Wheels comes with the valve stem included. I attached a review video link below. .
    view full answer...
  • Which Holds Up Better on Trailer Wheel Powder Coat or Acrylic Paint
    Powder coating is widely considered to be superior to acrylic paint in terms of resistance to chipping, scratching, and color retention. For a wheel application powder coat will definitely look better as well as hold up better than paint. Based on that the finish of the Dexstar part # AM20440 would hold up better than the Vesper part # MX34FR.
    view full answer...
  • Spare Wheel and Tire for Big Tex 35SA Utility Trailer
    A rim like the # MX34FR will work with your 250/75R15 tires. These tires fit a 15" rim with widths varying from 5" - 6-1/2". Matching the tire size for your spare is the important part. This means for a spare tire you can use the Kenda Karrier ST205/75R15 Radial Trailer Tire with 15" Black Mod Wheel # AM32238B.
    view full answer...
  • ST205/75R15 Trailer Tires & Black Wheels With 5 on 4-1/2 Bolt Pattern For 2016 Grey Wolf 22RR
    We can get your 2016 Grey Wolf 22RR set up with 15 inch wheels with a 5 on 4-1/2" bolt pattern for ST205/75R15 trailer tires, and you can either get the wheel and tire combo together, or go with a separate wheel and tire. So here are your options for both: - Westlake ST205/75R15 Radial Trailer Tire w/ 15" Black Spoke Wheel # WST44FR OR - Vesper Steel Modular Trailer Wheel # MX34FR - Contender ST205/75R15 Radial Trailer Tire # C20851D Both wheels come with the valve stem so you don't...
    view full answer...

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Info for this part was:

Employee Jeff D
Installed by:
Jeff D
Employee Jameson C
Expert Research:
Jameson C
Employee Mary E
Written by:
Mary E
Employee Wilson B
Updated by:
Wilson B
Employee Alexander C
Updated by:
Alexander C

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