I have a Keystone Sydney 340fbh fifth wheel with 5,200 lb axles ( 6 lug wheels) 12,400 gvwr, dry weight of 10,600, leaving payload of 1,800lbs. If I calculate 20% of Gvwr on the axles, the Gross axle load should be 9,920 or 4,960 per axle. Isn't this cutting it close. Also, I believe 1,800 payload is quite weak for a fiver this size. Opinions?

Sure, buy a different trailer. It meets specs but barely. What else is it telling you? Check your tire ratings. The last trailer I bought with 5200 lb axles didn't have tires up to that rating.Brian

VintageRacer wrote:Sure, buy a different trailer. It meets specs but barely. What else is it telling you? Check your tire ratings. The last trailer I bought with 5200 lb axles didn't have tires up to that rating.BrianTires are fine. Load range E 16" LTs. Tires far exceed axle ratings.

Have you weighed your rig to see what your actual axle and pin weights are?The pin wt. could be much higher than 20%.

therink wrote:VintageRacer wrote:Sure, buy a different trailer. It meets specs but barely. What else is it telling you? Check your tire ratings. The last trailer I bought with 5200 lb axles didn't have tires up to that rating.BrianTires are fine. Load range E 16" LTs. Tires far exceed axle ratings.Well, that's good and wierd. If that is the case I would load it up and go a scale and get wieghed. If your under 5,200 on the axles I'd let'r rip. Are you sure they are 5,200# axles? All of the 5,200# axles If seen (and I have an equipment trailer with them) use 15" tires (load range D at 2680#). Those E 16" are 3k# rated

Undersized axles? | Good Sam Community

hmknightnc
Explorer
Jul 02, 2013
therink wrote:
VintageRacer wrote:
Sure, buy a different trailer. It meets specs but barely. What else is it telling you? Check your tire ratings. The last trailer I bought with 5200 lb axles didn't have tires up to that rating.

Brian

Tires are fine. Load range E 16" LTs. Tires far exceed axle ratings.

Well, that's good and wierd. If that is the case I would load it up and go a scale and get wieghed. If your under 5,200 on the axles I'd let'r rip. Are you sure they are 5,200# axles? All of the 5,200# axles If seen (and I have an equipment trailer with them) use 15" tires (load range D at 2680#). Those E 16" are 3k# rated
sidney
Explorer
Jul 02, 2013
Have you weighed your rig to see what your actual axle and pin weights are?

The pin wt. could be much higher than 20%.
therink
Explorer
Jul 02, 2013
VintageRacer wrote:
Sure, buy a different trailer. It meets specs but barely. What else is it telling you? Check your tire ratings. The last trailer I bought with 5200 lb axles didn't have tires up to that rating.

Brian

Tires are fine. Load range E 16" LTs. Tires far exceed axle ratings.
VintageRacer
Explorer
Jul 01, 2013
Sure, buy a different trailer. It meets specs but barely. What else is it telling you? Check your tire ratings. The last trailer I bought with 5200 lb axles didn't have tires up to that rating.

Brian
tvman44
Explorer
Jul 01, 2013
Not uncommon!

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