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Is Timbren Axle-Less System A20RS545 Compatible With 13 Inch Loadstar Wheel and Tire


I am looking at your Timbren Axle-less Trailer Kit A20RS545 to add to the Ultra Tow 5x8 Aluminum Trailer and but I also want to upgrade the tires to a higher speed rated Rim/Tires combo like your 13 Castle Rock ST185/80R13 Raidal LHACXSJ101G. Before I purchase these I wanted to ask if these two items would be compatible? Also, would the following fender fit this set up F008563?


Expert Reply:

Definitely a smart idea to check for compatibility, and I can confirm for you that the Timbren Axle-Less system and Castle Rock tire and wheel you asked about will absolutely work together. The parts are the following:

- Timbren Axle-Less Trailer Suspension System with Hubs # A20RS545

- Loadstar ST185/80D13 Bias Trailer Tire with 13" Galvanized Wheel # AM3S334

The Timbren system uses hubs that have a 5 on 4-1/2" bolt pattern, and are compatible with wheels up to 13", which is the same size bolt pattern and wheel the Loadstar has. To mount the tire and wheel you will just need the Trailer Wheel Lug Nut # LHLR103.

In regards to the Trailer Fender with Top Step # F008563, this will work with the 13 inch wheels and to mount it you can use the Mounting Brackets for Trailer Fender # CE26098G-2.

I have added links below to some video reviews for you to check out as well if you'd like.

expert reply by:
Kyle S

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