Difference in Trailer Tire Sizes 225/75-15 and 205/75-15
Updated 08/27/2019 | Published 08/26/2019
Question:
I have a ST 225 75 15D and a ST 205 75r15, why does the height look about the same?, And can these be run on the same trailer? Its the last photo, not the first
asked by: Mary B
Expert Reply:
The reason the height on a ST205/75R15 tire like the Castle Rock Trailer Tire # LHCK301 and a ST225/75D15 tire like the Taskmaster Trailer Tire # TTWSF22515D look about the same is because they are about the same, particularly to the naked eye.
When fully inflated a 205/75-15 tire is 27.1" in diameter and a 225/75-15 tire is 28.3" in diameter, and that difference can be hard to see, especially if one is inflated more than the other.
Your photos did not come through but we always recommend having the size tires on your trailer, and having all four be either radial (preferred) or bias tires. Not doing so can mean the trailer will track poorly which can lead to suspension issues and your tires wearing unevenly so they will need to be replaced more often. Additionally, radial tires run cooler than bias tires and are more flexible so you will see a difference in ride quality with that aspect as well.
I very strongly recommend ensuring all of your trailer tires - including the spare - are the same size. I have added a link to our entire selection of 205/75-15 and 225/75-15 tires and wheels for you to check out, along with a link to a help article on trailer tires which I recommend taking a look at.
Product Page this Question was Asked From
Tamarack ST205/75R15 Radial Trailer Tire - Load Range C
- Trailer Tires and Wheels
- Tire Only
- Radial Tire
- Load Range C
- 205/75-15
- L - 75 mph
- Tamarack
more information >
Featured Help Information
Miscellaneous Media
Continue Researching
- Shop: Aluminum AM03 Series Matte Black Machined Trailer Wheel - 15" x 6" Rim - 6 on 5-1/2
- Search Results: 15 inch 6 lug rims
- Search Results: 15" x 6" 5 lug 475 wheels
- Search Results: trailer tires and wheels
- Q&A: Center Caps For A 6-Lug Trailer Wheel With 4-1/4" Pilot Hole (roughly)
- Search Results: 15 inch rims
- Search Results: order
- Search Results: find my order
- Shop: Aluminum AM03 Series Matte Black Trailer Wheel - 13" x 4-1/2" Rim - 5 on 4-1/2
- Shop: Replacement Center Cap for 15" or 16" Aluminum Viking Series Wheels - Gloss Black
- Shop: Aluminum AM03 Series Black Machined Trailer Wheel - 15" x 5" Rim - 5 on 4-1/2
- Shop: Replacement Center Cap for 15" or 16" Aluminum Viking Series Wheels - Chrome
- Video: What to Know About the Aluminum AM03 Series Matte Black Machined Trailer Wheel
- Shop: Aluminum AM03 Series Matte Black Machined Trailer Wheel - 15" x 5" Rim - 5 on 4-1/2
- Shop: Kenda Karrier KR53 ST205/75R15 Radial Trailer Tire with 15" Black Mod Wheel - 5 on 5
- Search Results: trailer hitch
- Article: Trailer Wiring Diagrams
- Shop: Trailer Hitch
- Q&A: Lug Nut Torque Chart for Trailer Wheels
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Shop: Trailer Wiring
- Video: Firestone Ride-Rite Air Bags with Easy Mount Compressor Feature Breakdown
- Q&A: Installation Time for Blue Ox BX1128 Flat Tow Base Plate Kit for 2016 Jeep Grand Cherokee
- Q&A: Which is Better for Highway Use 4.80-12 or 5.30-12 Trailer TIres
- Article: How to Measure Your Trailer Wheel Bolt Pattern
- Shop: Brake Controller
- Article: How to Measure for Trailer Hitch Drop
- Video: A Look at the Power Mountain Tallboy 6 Ton Off-Road Bottle Jack with a Military Cargo Trailer
- Q&A: What is the Difference Between Load Range C and D ST175/80D13 Trailer Tires
- Q&A: Difference Between Trailer Tire Sizes ST205/75R15 and ST225/75R15
on Trailer Tires and Wheels
