tires 14.9x38 or 16.9x30

captain d

New User
I right now am running the 14.9's. I do alright but at 4 mph, I run at 1600 to stay at 4 and to try and load the engine to make it work. Power is not a problem. Getting tires to hook is. I know the 16.9 will take less power. I will have to run harder to get to 4. But will I not have more tire on the ground witch will hopefully hook up more/ We are running top cut. Any thoughts?
 
What tractor and what weight classes? I think a 30" tire would be worse. A 14.9x38 is a good tire below 7500#, especially if its a 23 degree. Unless your front tires are more 8-10" up in the air at the end of the pull, you need more weight in the back. You also need to set the hitch as high and short as possible, unless you pull in farm class with a stock drawbar.
 
Hi
From my experience with the farm tractor I just bought go taller and narrower. our old tractor is 16.9x38, or new one is 18.4x34 and both have fantastic lugs but the new one is all over the place. The new one is also fluid and weighted the old one is no fluid or weights and it still hammers the new one for traction running on the same job. wider is not always better for traction just flotation.
Regards Robert
 
here is the site that you may find the tire chart for flat plate http://www.bridgestone.com.au/commercial/agricultural/bias.aspx
 
9 to 9.5. just that they dont cup. We are gen. on junky loose tracks. If you get lucky and are on a hard one it will cup.
 
You can't compare tires with fluid in them. As the old people say. Penny wise but a pound foolish. :) Vic
 
Ok point taken on fluid. when I went to look at the tractor the dealer asked if i would be doing a lot of heavy draft field work. Because if i was the 18.4x34 would not be as good as the other tractor on 16.9 x38. It's not often you find an honest dealer that would not sell you something because it was wrong for you. money and them getting the new truck or holiday usually comes first when you get in their office lol.
I guess he wanted me to be happy with my $37.000 purchase.
Regards Robert
 
In the right circumstances a 16.9-30 will kick butt. Those circumstances are few and far between. A friend of mine has beat 16.9X38 with his 16.9X30 in competitive NATPA, but only once in a while. It requires the "perfect storm" conditions so to speak.
 
Whats really neat about tires is there is no perfect one. What sticks in my mind is a few years ago, our local fairs had a 12000 lb NA class. No rules except hitch height and no turbo. My neighbor to the North Found him a set of 30.5's . He was pulling a 856 IHC. and was unbeatable!
 
Hi
it comes down to more than tires with pulling they must of matched the track conditions and tractor that day. when I ran my Belarus puller I could out pull 500 hp fully prepped tractors some days with there class sled settings . Mine was around 200 hp and built from stuff laying around our dealership spares pile. It's fun to see guys with $30.000 + pullers built on Fords, Masseys,Deeres, and Case IH get beat by a $2000 tractor.They tend to laugh at the start and get very quiet when it passes there mark.
Regards Robert
 

We sell tractor parts! We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today.

Back
Top