Need Higher load rating tires

[hbaird]

I need higher load rating tires for the front wheels on my tractor. Current rating is 320KG. I would like to double it if possible. Tire size is 4.00-16. No Ply rating given. The wheel have a 4 bolt pattern on 5.5in centers. I will replace the wheels also if needed, and I know I am taking my chances on the rest of the front end holding up to more load. Can anyone help?
Harold

 

[Farmwithjunk]

I need higher load rating tires for the front wheels on my tractor. Current rating is 320KG. I would like to double it if possible. Tire size is 4.00-16. No Ply rating given. The wheel have a 4 bolt pattern on 5.5in centers. I will replace the wheels also if needed, and I know I am taking my chances on the rest of the front end holding up to more load. Can anyone help?
Harold

Possibly foam-fill your existing tires? I'd bet that'll give you more load capacity.

I've never heard of a high capacity tire in that size range.

Another shot in the dark. Possibly an 8 lug wheel would fit your 4 bolt pattern? Then you have any number of options.

Out of curiousity, what sort of tractor with 4 bolt lug pattern?

 

[shvl73]

If that is the Jinma, check with the guys in the Chinese tractor forum. I'll bet its been discussed before.

 

[zzvyb6]

Easiest way to increase load capacity of a tire is to add air pressure. Regardless of the max recommended pressure, you can easily double it if necessary. That's the way tires are designed (actually for much more than double). There can be wheel stress issues because of the extra load, though so watch for a cracked bead. I presume this is a loader issue with front tires looking like they are collapsing or bulging. Since this is not a highway speed issue, you ought to start with air pressure.

 

[hbaird]

Yes it is a Jinma 200LE but the D2350 Mitsubishi has the same wheel 4 bolt and all. Also the same loader I want to use. foam filling is a good possibility. At the Carlisle tire web site they show the load rating at 25mph not at the 2-3 mph I will be going. The max pressure for my tire is 60 psi but the manual shows 29psi normal and this gives a good stiff sidewall. I think it will work after reading what zzby6 had to say. The tractor is never more than 250 yards from the garage so if it blows so be it.
Harold

 

[shvl73]

If its the 2wd one, it still could be valuable to post in the Chinese forum. I seem to remember an issue with the front end on the 2wd when a loader was added. Just might save you some problems. Some of the dealers that post on there are quite knowledgeable.

 

[hbaird]

The issue has been pretty well covered in the chinese forum. At least one major seller has put FEL's on the Jinma 2 wheelers for years and the small Japanese 2WD tractors have them as well. I looked at a Mitsubishi D2350 with smaller tires than mine and the
sidewalls so badly cracked I could not even read the brand. The axle did not look any stronger either. It was sitting with the Loader, I am getting, loaded and at full lift at a dealer. The early Jinma 2wd had no Power Steering and a weaker front axle so it would have limited the use with a FEL. I expect the lack of FWD will limit my dirt pile penetration ability and I may well have a major failure. But it will be within 250 yards of my garage at very low speed. I figure I can be out around $2000 if it breaks and I sell the loader cheap. It would probably cost more to replace the tractor with a 4WD. If it works I too can enjoy the benefits of an FEL equipped tractor. In closing I only paid $3600 for the tractor new.
Harold

 

[shvl73]

I expect the lack of FWD will limit my dirt pile penetration ability

Hang some counterweight on the hitch and you'll be suprised. I know I was with the 1000lbs of backoe on. Suprising ability in 2wd.

 

[bones1]

Easiest way to increase load capacity of a tire is to add air pressure. Regardless of the max recommended pressure, you can easily double it if necessary. That's the way tires are designed (actually for much more than double). There can be wheel stress issues because of the extra load, though so watch for a cracked bead. I presume this is a loader issue with front tires looking like they are collapsing or bulging. Since this is not a highway speed issue, you ought to start with air pressure.

I have the same tire issue.They almost go flat with a load in the bucket.So it's ok to double your air pressure in the front tires?. I want to make sure before I go trying this.

 

[Bird]

So it's ok to double your air pressure in the front tires?. I want to make sure before I go trying this.

I hate to see anyone suggest anything that dangerous. Yes, you might get away with it, but you'll be risking your tires, your wheels, and quite possibly your health.