Larger tires for my L3350

[twert75]

First time post. I have a L3350 with 14.9x24 on the rear and 8x16 on the front(turfs). I found a good deal on a set of R4 tires but they are 17.5x24 and 10x16.5. Will this be an issue or can I go up a tire size without a problem?

Thanks

 

[North Idaho Wolfman]

Check the RC on the tires and stay in that ratio and you'll be fine.
You can go quite a few size up till you run into problems with fender clearance.
One thing to watch is back set on the rims to make sure they won't hit on the inside, front and rear.

 

[rayc]

On my L4310 i have R1 rear 14.9 x 24, front 8.3 x 16. In the manual it lists for industrial tires, rear 17.5 x 24, front industrial 10 x 16.5. Don't know if it helps you or not?

 

[gpreuss]

According to TractorData.com what you have isn't very right although it is confusing.
You want the front/back tire RC or diameter ratio to be a bit - 2 to 5% - less than the tractor drag ratio; i.e. if the drag ratio is 1.5, you would want a tire ratio of about 1.45.
To determine drag ratio, put the tractor in 4WD, on firm ground. Mark all 4 tires where they hit the ground. With the differential lock kicked in, move the tractor ahead exactly one rotation of the rear tires. With a carpenter's square and protractor measure the rotation of the front tires (average of the two sides). The reading should be somewhere near to 360 + 180 = 540 degrees.
Then, divide the RC or diameter of the proposed rear tire by the same dimension of the proposed front tire. The resulting number should be 2-5% smaller.
To check what you already have, mark the tires on the ground, and do one rotation of the rear tires in 2WD. Mark the front tires where they touch the ground, again. Back up to the starting point, again in 2WD. Put it in 4WD and move ahead one rotation of the rear tires. The front tires should have moved more this time by 10 to 30 degrees.
You want the front tires to be pulling the rears by this small amount...

 

[twert75]

Thanks for the information guys. I think I have an idea what to do to determine if the wheels and tire will work. Great forum and great detailed info!!
Thanks again.

 

[Rodeo hunter]

According to TractorData.com what you have isn't very right although it is confusing.
You want the front/back tire RC or diameter ratio to be a bit - 2 to 5% - less than the tractor drag ratio; i.e. if the drag ratio is 1.5, you would want a tire ratio of about 1.45.
To determine drag ratio, put the tractor in 4WD, on firm ground. Mark all 4 tires where they hit the ground. With the differential lock kicked in, move the tractor ahead exactly one rotation of the rear tires. With a carpenter's square and protractor measure the rotation of the front tires (average of the two sides). The reading should be somewhere near to 360 + 180 = 540 degrees.
Then, divide the RC or diameter of the proposed rear tire by the same dimension of the proposed front tire. The resulting number should be 2-5% smaller.
To check what you already have, mark the tires on the ground, and do one rotation of the rear tires in 2WD. Mark the front tires where they touch the ground, again. Back up to the starting point, again in 2WD. Put it in 4WD and move ahead one rotation of the rear tires. The front tires should have moved more this time by 10 to 30 degrees.
You want the front tires to be pulling the rears by this small amount...

Y
I love an in depth answer. Your handier than a shirt pocket man. I will be saving this formula.