Trailer Wheel and Tire Superstore, top quality brands at the lowest prices online. We offer Boat Trailer Tires and Wheels, Tires for your ATV and Trailer Rims and Tires for all Trailers. Free Ground Shipping on all Trailer Wheels and Trailer Tires over $50. 

Home of Trailer Wheel and Tire Superstore. My Trailer Wheels Account Page Contact the Kings of Wheels Frequently Asked Trailer Wheel Questions Trailer Wheels Blog

Your Cart 0 item(s)

View Cart | Check Out

Trailer Wheels and Tires Technical Definitions Guide

You may not think of your trailer wheels as being particularly specialized, but there are actually many specific measurements that must be just right. The wheel's size ensures that it flows smoothly with the others and that the cargo you are carrying on the trailer has a smooth, safe ride to your destination. When you're measuring your trailer wheel, you need to pay attention to several specific dimensions.

  • The wheel centerline is the exact center of the wheel, measured from front to back. The trailer tire needs to be balanced around the centerline for proper operation.

  • The wheel diameter is the distance across the trailer wheel at its longest, measured at the spots where the tire seals with the wheel.

  • The bolt diameter is the distance across the bolt hole where you will secure the wheel to the trailer.

  • The mounting pad is the part of the wheel in the center that touches the face of the hub on your trailer.

  • The drum side is the side of the wheel that faces your trailer and drum.

  • The street side is the side of the trailer wheel that faces the street.

  • The backspace is the distance between the mounting pad and the edge of the trailer wheel on the drum side.

  • The wheel offset is the space between the centerline of your trailer wheel and the mounting pad.

Depending on your trailer wheel's configuration, the wheel offset may be zero, positive or negative. It's very important to understand the difference between these because they affect how the weight of your trailer is distributed over your wheels.

Here's a brief description of each option:

  • Zero offset is when the mounting pad is exactly at the wheel centerline (this is the most common offset with Trailer Wheels).

  • Positive offset is when the mounting pad is closer to the street side than the drum side.

  • Negative offset is when the mounting pad is closer to the drum side than the street side.

Being able to understand and measure each of these components is very important. You'll need the information to choose the proper trailer wheels when it's time to replace them.

12x4 Aluminum T13 Sendel Trailer Wheel, 4x4 Lug, 1,220 lb Max Load
Part Number: TW-T13-24440BM
Get Details
14.5x6 Allied Mobile Home Rim, Black Steel 3200 lb Max Load
Part Number: TW-AW14.506BL
Get Details
15x6 Aluminum Series08 HiSpec Aluminum Trailer Wheel, 5 on 4.50, 2,150 lb Max Load
Part Number: TW-08565455S
Get Details
15x6 Aluminum T13 Sendel Trailer Wheel, 5x4.50 Lug, 2,150 lb Load Capacity
Part Number: TW-T13-56545BM
Get Details
15X6 Aluminum Trailer Wheel (6-Lug), 2,830 lb Max Load
Part Number: TW-0356655
Get Details
16 x 6 Light Truck Dual Mounting Wheel X-45460 8 on 6.50 Bolt Pattern
Part Number: TW-X45460
Get Details
18.5x8.50-8 Super Trail Golf Cart Tire Load Range B, 815 lb Max Load
Part Number: TW-AWT18.5x8.50-8B
Get Details
8 x 3.75 White Steel Trailer Wheel 5 x 4.50 Lug, 900 lb Load Capacity mounted on 18.5x8.50-8 LRC Tread Star Trailer Tire
Part Number: TW-AW2283712-70_AWT18.5x8.50-8C
Get Details
Valve Stem, Red Anodized, Bolt On TR48E
Part Number: TW-502XL-R
Get Details

Hi Spec Trailer Wheels

HWT Aluminum Trailer Rims

Hercules Trailer Tires

Carlisle Trailer Tires

Carlisle Aluminum Trailer Rims

Sendel Trailer Wheels

Sendel Wheel

Trailer Wheels Free Shipping

Trailer Tires Free Shipping

Carlisle ATV Tires

8 inch Trailer Rims

8 inch Trailer Tires

Bias Ply Trailer Tires

Cheap Trailer Tires

Wheel and Tire Package

10 inch Trailer Rims

10 inch Trailer Tires

Radial Trailer Tires

Cheap Trailer Wheels

Wheels Specials

12 inch Trailer Rims

12 inch Trailer Tires

Trailer Rim & Tire Combo

Custom Trailer Rims

ATV Tires

13 inch Trailer Rims

13 inch Trailer Tires

Trailer Wheel Caps

Painted Trailer Wheels

Golf Cart Tires

14 inch Trailer Rims

14 inch Trailer Tires

Center Caps

Forged Trailer Wheels

Super Trail Tires

15 inch Trailer Rims

15 inch Trailer Tires

Aluminum Trailer Wheels


Nankang Trailer Tires

16 inch Trailer Rims

16 inch Trailer Tires

Steel Trailer Wheels

Tire Specials

Transmaster Trailer Tires

17 inch Trailer Rims

17 inch Trailer Tires

Chrome Trailer Rims


ST Trailer Tires