Replacement For ST145R12 Trailer Tires With More Height

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Question:

I have ST145R12 Load Star tires on my 700# camper. After 35,000 mi. I need new ones. Do you have anything with a more aggressive tread, or more height for the 12 wheels. Thanks

asked by: Stephen C

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Expert Reply:

So long as you have a 12" x 4" trailer wheel (which you should for a ST145R12 trailer tire), there is an option for tires slightly taller than the 21.3" diameter ST145R12 tires. What you can use is a 5.30R12 trailer tire, which measure 21.6" in diameter so you get a bit more height:

- Taskmaster 5.30R12 Radial Trailer Tire # TT53012C

These tires also have a 6/32" tread depth and 81 mph speed rating so they are really good for highway use.

expert reply by: Kyle S

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Answer 1

We have ST145/R12 trailer tires with a load range E, the Kenda Karrier S-Trail #AM10140. If you wanted to go to a larger tire and wheel you could do so but you would need to ensure you have the needed clearance of about three inches from your trailer…

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Answer 2

The 5.7 inch width of a ST145/R12 tire is by far the widest 12 inch tire, so in order to get a wider tire you will need to upgrade to a ST175/80R13 tire, which measures 7 inches wide. This means you will also need new, 13 inch wheels for the tires to…

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Answer 3

In order to determine the torque rating for the lug nuts on your trailer you will need to know check out the chart I attached that shows all of the torque specs for all the trailer lugs available based on stud size, wheel material and wheel size.

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Answer 4

The difference between the Class II and Class III hitches has to do with their Gross Trailer Weight (GTW), their Tongue Weight (TW), and their Hitch Receiver Size. Class II trailer hitch receivers have a 1-1/4 inch receiver and can be rated up to…

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Answer 5

Hey Bryan, that's a good question. The pricing can definitely be misleading, but I wouldn't use it to judge the quality of the tire. A lot of that comes down to promotions, inventory, and whether you're looking at a tire by itself or…

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Answer 6

According to Blue Ox, it'll take an experienced installer about 4 to 5 hours to complete the installation of their #BX1128 Base Plate Kit on a 2016 Jeep Grand Cherokee. The install isn't what I'd call super-difficult, but the installation…

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Answer 7

The 5.30-12 tires, being wider, are going to make more contact with the road. This means that the noise, and heat build up will be higher than a 4.80-12 tire but the rolling resistance will actually be less because the tire is larger diameter. The…

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Answer 8

It sounds like you are speaking of the wires for the brake magnets. If this is correct, you will need to connect one of the wires to the brake controller output wire on your trailer connector and the other wire will need to be grounded to a clean…

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Answer 9

The difference between an load range C and load range D tire in the same size is the capacity and psi rating. The two tires will still have the same dimensions and fit on the same wheel. The D rated tire has a higher capacity. For a ST175/80D13 like…

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Answer 10

Hey Charles, since you are looking for a Goodyear tire size ST225/75R15 mounted on a wheel with a 6 lug wheel the part #GY97QB would be a really great option. This has the tire you are looking for mounted on a really nice aluminum wheel that will…

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Answer 11

The #84 spindle is just a common way to identify the spindle dimensions typically used for 3,500 lb axles. So instead of listing out the parts, people can just say they have #84 spindles and it's easier to know what fits it. The CE Smith Trailer…

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Answer 12

The two sizes you mentioned are pretty similar and fit many of the same 15 inch wheels. The 205/75-15 fits rim widths of 5 inch to 6 inch whereas the 225/75-15 fits widths that are 5 inch to 6-1/2 inch. The 205 is 27.1 inches tall and the 225 is 28.4…

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Replacement For ST145R12 Trailer Tires With More Height

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