What is the Difference Between ST185/80D13 Trailer Tires and ST185/80R13 Trailer Tires
Updated 05/28/2015 | Published 05/26/2015 >
Products Featured in This Question
Question:
WHAT IS DIFFERENCE OF BOAT TRAILER TIRE 185-80 D 13 ON YOUR SITE 185-80 R 13 ON ACTUAL TRAILER
asked by: DON
Expert Reply:
Loadstar ST185/80D13 Bias Trailer Tire # AM3S331 is a bias ply construction whereas the 185/80R13 you have is a radial tire construction. The difference is how the plies run inside the tire. You would want to keep the construction type the same on the trailer for best performance and even tire wear.
In size 185/80-13 we only have bias ply tires. This type is better for rough rounds or gravel but do fine on pavement. Radial tires are best on pavement but will work fine on rough roads or gravel. With a boat trailer you can find yourself on some rough roads so going with bias ply tires wouldn't be a bad idea at all.
For a tire only in size 185/80-13 we have # AM1ST79.

Product Page this Question was Asked From
Loadstar ST185/80D13 Bias Trailer Tire with 13" White Wheel - 5 on 4-1/2 - Load Range D
- Trailer Tires and Wheels
- Tire with Wheel
- Bias Ply Tire
- Load Range D
- 185/80-13
- 13 Inch
- M - 81 mph
- 5 on 4-1/2 Inch
- Steel Wheels - Powder Coat
- Kenda
more information >
Featured Help Information
Miscellaneous Media
Continue Researching
- Search Results: dometic freshjet
- Shop: Loadstar ST185/80D13 Bias Trailer Tire with 13" White Wheel - 5 on 4-1/2 - Load Range D
- Shop: Loadstar ST185/80D13 Bias Trailer Tire with 13" Galvanized Wheel - 5 on 4-1/2 - Load Range D
- Shop: Kenda Karrier KR53 ST205/75R15 Radial Trailer Tire with 15" Silver Mod Wheel - 5 on 4-3/4
- Shop: Kenda Karrier KR53 ST205/75R15 Radial Trailer Tire with 15" Silver Mod Wheel - 5 on 4-1/2
- Q&A: Highest Capacity 13 inch Trailer Tire Recommendation
- Article: 7 Common Questions Everyone Has About Trailer Tires
- Shop: Karrier ST175/80R13 Radial Trailer Tire with 13" Galvanized Wheel - 5 on 4-1/2 - Load Range D
- Shop: Loadstar ST185/80D13 Bias Trailer Tire w/13" White Modular Wheel - 5 on 4-1/2 - Load Range D
- Search Results: coupler lock
- Search Results: black etrack
- Shop: Westlake ST175/80R13 Radial Trailer Tire w/ 13" Black Mod Wheel - 5 on 4-1/2 - Load Range C
- Q&A: Can You Upgrade ST175/80D13 Tires On Utility Trailer
- Q&A: Locking Pin Recommendation to Replace Snapper Pin on etrailer 12.5K Sleeve-Lock Trailer Coupler
- Search Results: e~track backing plate
- Search Results: license plates and frames
- Search Results: trailer license plate mount
- Search Results: e track brackets
- Q&A: Should Trailer Tires Be Inflated to Their Max Psi Rating When Cold
- Q&A: Any Issues Going from a ST175D13 Bias Tire to a ST185D13 Radial for 19Ft Boat Trailer
- Shop: Trailer Hitch
- Article: Troubleshooting 4 and 5-Way Wiring Installations
- Q&A: What is the Difference Between Load Range C and D ST175/80D13 Trailer Tires
- Q&A: Metric Tire Size to Replace B78-13ST Boat Trailer Tire