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Castle Rock ST225/75R15 Radial Trailer Tire - Load Range D

Castle Rock ST225/75R15 Radial Trailer Tire - Load Range D

Item # 274-000029
Our Price: $173.63
Trailer Tires and Wheels
This item qualifies for Free Shipping
Shipping Weight: 28 lbs
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Castle Rock Tire Only - 274-000029
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Radial special trailer tire has 8-ply rating and 2,540-lb max load at 65 psi. Constructed of double steel belts and double nylon plies with a nylon overlay. Fits 15" wheels and for highway use. Complimentary roadside assistance included. Great Prices for the best trailer tires and wheels from Castle Rock. Castle Rock ST225/75R15 Radial Trailer Tire - Load Range D part number 274-000029 can be ordered online at or call 1-800-940-8924 for expert service.
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  • Reviews (81)
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Castle Rock Trailer Tires and Wheels - 274-000029

  • Tire Only
  • 15 Inch
  • 225/75-15
  • Load Range D
  • Radial Tire
  • L - 75 mph
  • Castle Rock

Radial special trailer tire has 8-ply rating and 2,540-lb max load at 65 psi. Constructed of double steel belts and double nylon plies with a nylon overlay. Fits 15" wheels and for highway use. Complimentary roadside assistance included.


  • Radial ply tire is great for highway use
  • Constructed with double steel belts and double nylon plies
  • Nylon tread-firming belt overlays help prevent tread separation
  • Tread wear indicator (TWI) makes it easy to see tread depth
  • Special trailer (ST) tire has sturdy sidewalls so that it can handle heavy loads
    • Created specifically for trailers and not intended for use on other vehicles
  • Complimentary roadside assistance for 2 years
    • Flat tire service available 24/7 anywhere in the United States, Canada, or Puerto Rico
  • Meets DOT and FMVSS specifications


  • Fits: 15" x 6", 15" x 6-1/2", and 15" x 7" rims
  • Tire size: ST225/75R15
    • Section width: 8.78"
    • Outer diameter (when inflated): 28.3"
  • Capacity:
    • Load range: D
    • Ply rating: 8
    • Maximum load: 2,540 lbs at 65 psi
  • Tread depth: 9.5/32"
  • Maximum speed: 75 mph (speed rating L)
  • 5-Year warranty

Lionshead Roadside Assistance Program

This tire comes with complimentary roadside assistance for 2 years. If your RV or trailer has a flat tire, call the help line and a technician will come change the flat for you. You can call 24 hours a day, 7 days a week, and 365 days a year from anywhere in the United States, Canada, or Puerto Rico.

Castle Rock Radials

Castle Rock Tread Close-Up

Unlike standard trailer tire tread, which has solid, continuous ribs, the tread on these Castle Rock radials has ribs with breaks. These breaks allow water to run off to the sides. The Castle Rock tread also has sipes. Siping is a process in which thin grooves (or sipes) are cut into the rubber of the tire. The grooves channel water away from the tread so that the tire makes better contact with the road. Both of these features greatly improve traction during wet, snowy, or icy conditions.

Castle Rock radials are constructed with double steel belts and double nylon cords. A protective layer of nylon is wrapped around the steel belts to help prevent tread separation.

Radial Tires vs. Bias Tires

Radial tire vs bias tire graphic

Radial ply tires are designed for trailers that are towed on the highway. The cords on a radial tire are positioned at a 90-degree angle to the direction of travel so that they lay across the width of the tire from wheel lip to wheel lip. This construction prevents the cords from rubbing against one another when the tire flexes, unlike the cords on a bias ply tire. As a result, radial tires have less rolling resistance and heat buildup, which leads to a longer tread life and improved steering at higher speeds.

274-000029 Lionshead Castle Rock ST225/75R15 Radial ST Tire - LR D

Alternate part number: HZCR-225RD-150

Customer Satisfaction Score:

Customer Reviews

Castle Rock ST225/75R15 Radial Trailer Tire - Load Range D - 274-000029

Average Customer Rating:  4.7 out of 5 stars   (81 Customer Reviews)

Radial special trailer tire has 8-ply rating and 2,540-lb max load at 65 psi. Constructed of double steel belts and double nylon plies with a nylon overlay. Fits 15" wheels and for highway use. Complimentary roadside assistance included.


I bought this tire to replace exactly the one that was on the trailer. I've found different manufacturers tires are not exactly the same size even though the numbers match. I had one tire on my dump trailer locking up when I applied the brakes. It was a different manufacturer and when comparing it was actually about a 1/2" smaller height wise. This is the exact tire that the rest of the tires on my trailer are and it has been working great. It is just a tire. Not to much t report on.


Was good for the first 2 months until it blew out out on me

The tires do have a one year warranty. I will have our customer service team reach out to you.
-- Etrailer Expert Jenny N - 10/24/2022


Received excellent service! Needed to get my travel trailer tire replaced in order to go on trip soon. Did not expect to get shipment so quick. Really appreciated it.


I had a blowout on my way home from Florida back to Texas on my travel trailer. Half way home and was glad had a spare. When I got back I called the local dealership and they referred me to because they couldn’t get it in stock from their supplier. Looked up on internet and found the exact match.
Ordered on Friday and arrived on Wednesday, even with a 3 day holiday. Easy process to order. They had in stock.
Happy with order.


I called around and could no one had this in stock but could order it with no idea when it would arrive. The dealer I bought the camper from suggested going to and they not only had it but sent it the same day and it show up 2days later. You can't beat that! I have bought other things from and always great to work with.


Wow! My tires got here super fast! Ordering them was so easy too. I will definitely be buying from you guys again! Thanks


Extremely fast delivery, and flawless purchasing process.

Tire was bought to replace a blown spare and was never used. Trailer was sold four months after tire purchase.
Doug - 02/12/2022


My review is not going to be based on the tire itself due to I ordered this it to replace the tire I blew. This review is going to be on etrailer.
This is the 2nd time I have ordered a product with etrailer. They are very professional and very knowledgeable about the products that they sell. They keep you informed about item being shipped. I will keep ordering from them.


Customer service when ordering was great. He was very knowlegeable and aided in ordering the proper tire.


Got here very quickly, thanks !


etrailer was the only place I could find to order a tire that matched the other three tires on my RV. Ordering was easy and the tire was delivered when they said it would be. The tire was delivered in a cardboard box with handles making it easy to move around. If I ever need another tire I would definitely use again.


Very efficient and prompt service. Easy to place order


It was the exact same tire I needed due to a blow out. It arrived quickly, in perfect condition. I have ordered multiple times from trailer, all products as advertised. Will recommend them, anytime.


Worst tires ever!!!! Many blow outs and wear problems. Broken belts in new tires. These tires have destroyed many a fender well!!!


I needed a new tire for my travel trailer and retailer provided several choices. The ordering process was very easy and the tire was delivered in less than a week. I will definitely use etrailer again.


I rate 5 stars for the following reasons: (a) etrailer had the best price for my trailer tires, (b) the order was delivered by UPS in 3 days for free, and (c) I was kept informed by email of the progress of my order.


Excellent tire - as advertised


Worst tire I have ever bought ever one has been a total blow out.


Great product even better service. Was a pleasure to be able to talk to a really great salesman


Good tire and matches the other tires.


We haven't had any problems. Great ti res!!






Show More Reviews

See what our Experts say about this Castle Rock Trailer Tires and Wheels

  • Which Manufacturer Makes the Castle Rock Trailer Tires
    The Castle Rock # 274-000029 is made by Lionshead Tire and Wheel. These meet all DOT and FMVSS specifications, have a speed rating of 75 mph, and carry a 5 year warranty making them an excellent choice of trailer tire. I included a review of this tire for you to take a look at as well.
    view full answer...
  • Replacement Tire For A 7.00-15LT Tire
    The reason you tire looks small is because it isn't mounted to the wheel and inflated. The closest comparable match to your 7.00-15LT tires is going to be a 225/75R15 like the Castle Rock ST225/75R15 Radial Trailer Tire - Load Range D # 274-000029. It's going to an inch shorter in overall diameter.
    view full answer...
  • Weight Capacity of Load Range D Trailer Tire in Size ST225/75-15
    For the tire size ST225/75-15 in the Load Range D like the part # 274-000029 the weight capacity is 2,540 lbs at 65 psi. Which with just four of these you'd be over the 10k GVWR of the trailer you mentioned so you should be fine.
    view full answer...
  • What Tire Pressure Should Castle Rock ST225/75-15 be Ran At
    Trailer tires like the Castle Rock ST225/75-15 part # 274-000029 need to be inflated to their max pressure rating when cold. This tire needs to be inflated to 65 psi as that is it's max rating.
    view full answer...
  • Is 10 PSI Increase Normal After Inflating Trailer Tire to Max PSI When Cold and Then Travelling
    What you described is perfectly okay. Trailer tires are designed to be inflated to their max psi when cold and any pressure change that occurs from driving as long as the speed and weigh ratings aren't exceeded is perfectly normal. Also the changes you mentioned are very common.
    view full answer...
  • Does Tire Weight Rating Double Since the Same Tire Will be on Both Sides of the Axle
    Yes, for a single axle trailer you will add the weight rating of both tires for your total tire weight rating. So for the Load Range D Castle Rock ST225/75R15 Radial Trailer Tire # 274-000029 you will take the individual rating of 2,540 lbs at 65 psi and that increases to 5,080 lbs. Please note that you are always limited by your lowest rated component. So if you have a 3,500 lb axle then you're still limited to 3,500 lbs even though these tires are rated for 5,080 lbs together.
    view full answer...
  • USA Made Trailer Tire Recommendation for Size 225/75R15 that is Most Reliable
    Goodyear Endurance trailer tires are the only USA made trailer tire out there. In the size of 225/75-15 that you referenced we have a Goodyear part # 724857519 which is definitely your best choice. These have the best tread design, warranty, speed rating etc. and overall are the most reliable so I recommend them the highest. I attached a review video for this tire for you to check out as well.
    view full answer...
  • Correct Tire Pressure Needed For a Castle Rock ST225/75R15 Tire on 2021 Starcraft Super Lite 281BH
    As your Castle Rock ST225/75R15 shows 80psi cold that is the pressure that you want to have for your 2021 Starcraft Super Lite 281BH. It sounds like you may have the Load Range E version of the Castle Rock ST225/75R15 Radial Trailer Tire # 274-000029 as our load range D only requires 65psi cold. Be sure you are checking and filling the tires when they are cold as the air pressure in the tires will increase as they are driven and become warm. This is normal for tires to be filled when cold.
    view full answer...
  • Tire Recommendation for Enclosed Trailer with Size ST225/75-15
    Is there any other info on the tire you can find? The numbers you mentioned are not the size so I am not able to determine what you'd need at this time.
    view full answer...
  • Westlake Wheel and Tire with Trailer Wheel part # LHHA315
    The wheel part # LHHA315 that you referenced is not currently available as part of a combination option. You would need to get the Castle Rock ST225/75R15 Radial Trailer Tire - Load Range D # 274-000029 and have it installed at a local shop.
    view full answer...
  • How to Choose Boat Trailer Tires
    There is a way for you to select the right tire, though I was unable to find any type of specs for a Bayliner trailer. However, it is easy to find the correct tires for your application, you simply want to choose tires that have a combined capacity which exceeds the GVWR of your trailer and fit your wheels. For example, the Karrier ST175/80R13 Radial Trailer Tire # AM10199 is a load range C tire with a capacity of 1,360 lbs (or 2,720 lbs for two) that fits 13" x 4-1/2", 13" x 5", and...
    view full answer...
  • Comparing the Castle Rock and Westlake ST225/75R15 Radial Trailer Tire
    The Castle Rock ST225/75R15 Radial Trailer Tire part # 274-000029 and the Westlake ST225/75R15 Radial Trailer Tire part # LHWL304 are both made by the same company, Lionshead. In short, Lionshead is the brand and Westlake/Castle Rock is the model. The main difference between these two is that the Castle Rock tire has a load range D (2,540 lbs) and the Westlake tire has a load range E (2,830 lbs) rating. The Westlake tire would give you more of a cushion for your 10,000 lb trailer so that...
    view full answer...
  • What is Causing Blowouts and Can 225/75-15 Trailer Tires Replace 205/75-15 Trailer Tires
    A blowout can be caused by any number of things, from the trailer being overloaded to the tire being underinflated (or underrated) to just a poor quality tire. In general, the higher the load range and capacity the higher the ply rating will be, so if you are using 4-ply tires and have 15 inch wheels, it sounds like you may not have a tire with the correct load capacity so in your case I strongly recommend going to a trailer tire with a higher ply rating, and a higher quality tire. In...
    view full answer...
  • Can a 225/75R15 Tire Fit a 2017 R-Pod 177?
    The Lionshead Castle Rock ST225/75R15 Radial Trailer Tire # 274-000029 will have an outer diameter of 28.1 inches and will still fit your 2017 R-Pod 177 without issue at all. This will have the same L speed rating, but will actually be rated higher at 2,540 pounds at 65 psi.
    view full answer...
  • Does Castle Rock ST225/75R15 Radial Tires an 15 Wheels Have Capacity for 7k Trailer
    Each of the Castle Rock ST225/75R15 Radial Tire # 274-000029 w/ 15" Aluminum Wheels # AM20518 has a weight capacity of 2,150 lbs based on the wheel's limit, so if you had a tandem axle utility trailer this would easily have the capacity needed.
    view full answer...
  • What Is the Warranty for Castle Rock 205/75/15 Tire
    The warranty on the Castle Rock tire like the Castle Rock ST205/75R15 Radial Trailer Tire - Load Range C # LHCK301 is 5 years.
    view full answer...
  • Does The Castle Rock Lionshead ST225/75R15 Tire Come Mounted On The Wheel With # LHACK124
    Yes, the Castle Rock ST225/75R15 Radial Trailer Tire w/ 15" Silver Mod Wheel part # LHACK124 does come mounted on the wheel. The Castle Rock ST225/75R15 Radial Trailer Tire by itself is part # 274-000029. The Lionshead 15" x 6" 6 on 5-1/2 Steel Modular trailer wheel by itself is part # LHHA312.
    view full answer...
  • Does the Castle Rock ST225/75R15 Radial Trailer Tire w/ 15" Silver Mod Wheel Come in 5 Lug
    In order to get the Castle Rock ST225/75R15 Radial Trailer Tire w/ 15" Silver Mod Wheel part # LHACK124 in a 5 on 4-1/2" bolt pattern you'll need to combine the Lionshead Steel Modular Trailer Wheel part # LHHA315 and the Castle Rock ST225/75R15 Radial Trailer Tire part # 274-000029. We don't offer the above as a pre-mounted combo unfortunately. This is the same tire and wheel as the combo but the wheel is 5, not 6-lug.
    view full answer...
  • Nice Looking Wheel and Tire Recommendation for 2014 R-Pod 177
    Trailer tires are really only safe to use if they are newer that 4-6 years so yours are definitely at that time where yours need to be replaced. I looked up pictures of your 2014 R-Pod 177 and a lot of them have the black aluminum wheel designs like the Castle Rock ST225/75R15 Radial Tire # 274-000029 and 15" Aluminum Liger Wheel # LH35FR which I recommend highly for you. It looks great, fits the hubs of your trailer, has a tire that has a higher speed rating of 75 mph and comes with a...
    view full answer...
  • Correctly Rated 225/75-15 Trailer Tires For 7,000 lb Tandem Axle Trailer
    Okay, let's start real quick with if you should have different load rated tires on your tandem axle trailer - you can, but it isn't advisable as they will wear differently, or you'd need to keep a real close eye on the psi of each tire to make sure it's exactly the same. As for the rest of your questions, I'll take them one by one. 1) While we don't have Eagle tires so I can't comment on their viability, your friend is 100 percent right, load range F 225/75-15 tires are absolutely overkill...
    view full answer...
  • Are the Castle Rock ST225/75R15 Radial Trailer Tires Really China Bombs
    The Castle Rock ST225/75R15 Radial Trailer Tire part # 274-000029 is a great tire option even though it's not made in the USA. The main cause of blowouts that we see is attributed to either improper psi or overloading. There is a huge misconception about tire pressure, you must fill these to the max psi listed on the sidewall while cold no matter the load per the manufacturer. If you are really concerned with blowouts then you should be running a TPMS which monitors both temperature and...
    view full answer...
  • Aluminum Replacement Wheel and Tire to Replace Taskmaster ST205/75/D15 for Enclosed Trailer
    I have a great option for the wheel and tire replacement you are looking for. The Castle Rock ST225/75R15 # 274-000029 tire with Aluminum Hi-Spec SeriesTrailer Wheel - 15" x 6" Rim - 5 on 4-1/2, Item # AM20518 as it's an aluminum wheel and tire in a slightly larger size than what you have now. It's also a radial which will give you a better overall ride quality and speed rating at 75 mph.
    view full answer...
    Image 1 for
  • 15 Inch Aluminum Liger Trailer Wheel w/ a 5 on 4-1/2 Bolt Pattern
    Yes, we do have the Aluminum Liger Trailer Wheel - 14" x 5" - 5 on 4-1/2 - Gunmetal Gray item # LH84FR in a 15". It is the Aluminum Liger Trailer Wheel - 15" x 5" - 5 on 4-1/2 - Gunmetal Gray item # LH35FR. If you need tires for your new wheels I recommend the Castle Rock ST225/75R15 Radial Trailer Tire - Load Range D item # 274-000029. Each tire has a maximum load capacity of 2,540 lbs at 65 psi and a maximum speed of 75 mph. This tire comes with complimentary roadside assistance for...
    view full answer...
  • Can 175/80-13 Tires be Upgraded to Different Size to Carry a 4,000 lb Boat
    As long as you have the 5 on 4-1/2" bolt pattern for your hubs then you could fit a larger tire and wheels like the 15" Aluminum Wheel # AM20518 and the Castle Rock ST225/75R15 Radial Tire # 274-000029. You will need to check the dimensions to see if you have room. This Wheel has a load range of D (2,150 lbs at 65 psi) which will be able to handle your 4,000 lb boat plus an extra 300 lbs. The other thing that needs to be addressed though before you start carrying your 4K boat around...
    view full answer...

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