by Nobody » Fri Jan 17, 2014 11:49 am
My 1800# HF trailer (1740# current description??) mfg'd 2005/6 uses 530x12, 5 on 4.5. If your trailer will allow the extra 1.4" overall diameter & maybe a half inch greater width (21.9" overall diameter 530x12 vs 20.5" overall 480x12) I'd recommend them. I built my TD in 2006 & used the original tires'n wheels for about 4 years (approx 15K miles). When the tires needed replacing I bought the WalMart tires already mounted on new white spoke wheels & they've done well.
I try to adjust the tire air pressure to give the best support/ride consistent with overall performance. In my experience that has resulted in more wear to the center rib (or maybe the middle inch or so) of the tire tread. I still had fair tread on each side of the tires when I changed them out but the middle was near 'bald'. Could probably have extended the 'life' of the tires by reducing tire pressure a little but I used what I felt comfortable with & gave me petty fair use/fuel mileage.
The 'new' WalMart Hi-Run (Chinese??) tires appear to be showing the same wear pattern after 5K+ miles. I don't use maximum inflation. My tires are rated for max 1045# @ 80psi so 2 tires will carry 2090# at that pressure. Tire dealer told me that tubeless, bias ply tires need 20-22# pressure to stay on the rim under any/all conditions so I calculated a ratio between 25 & 80 psi & figured that a good pressure for my approx 1200-1300# TD would be 55-60# tire pressure so that's what I usually run. I may try reducing that a few pounds to see if it reduces center rib wear but, my TD rides/tows very well at current tire pressure with little or no 'bounce' or 'skid' on rough roads/terrain.
Harvey -
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Doing the right thing ain't always easy but, . . . it's always right!