Rims Tire Size and Rim Size

[CaptainRedbeard]

Hello,

I have been trying to learn all I can since buying a L3830, but I feel like I have come to a wall on something regarding tire size. My tractor has bald r4 tires on it, and I would really like to replace them with something more aggressive (hills and wet fields where I live).

I have read the threads about not being able to switch from r4 to r1 on the same wheels. Do people only run one size tire on a set of wheels? Is that because of the 4wd ratio? I feel like my 15x24 rear rims could fit 16.9x24 tires, but I guess I dont know...and I dont know if that would mess up the ratio with the front.

Just curios to know what I cannot find online. Trying to avoid spending the dough on new rims.

 

[ruffdog]

A hybrid between the r1 and r4 is becoming available and is called the r14.

 

[jaxs]

I realy doubt you have 15" x 24" wheels. The tractor came with 14.9-24 tires on about 10" x 24" wheels. You can go from R1 to R4 and vs versa as long as tire size is same. Fronts on 4wd are 8.3-16 which are most plentiful in R4 and R3. No harm will result because mfgr expect's tires to rotate at different rates to other 3 under normal use. Only thing you give up is weight carrying with loader.

 

[CaptainRedbeard]

I dont know for certain, I was just going off the 17.5lx24 tire size and the parts diagram showing the corresponding wheel. Found here: Kubota L383�DT / GST / HST (Dual Traction, 4wd / Glide Shift Transmission / Hydrostatic Transmission) Parts Diagrams

 

[art]

You should check with your local dealer for prices on tires and rims. Kubota has excellent prices on them and they are available through your dealer for about the same price as a tire!

 

[CaptainRedbeard]

You should check with your local dealer for prices on tires and rims. Kubota has excellent prices on them and they are available through your dealer for about the same price as a tire!

Well, you are right in some ways. Called my local shop and the price of a tire on the rim is cheaper than the cost of a tire alone, but I would be looking at $2000 to swap to r1s. That just seems like a bit much. Maybe r4s and chains are in my future unless I can find some aftermarket rims.

 

[SPYDERLK]

Hello,

I have been trying to learn all I can since buying a L3830, but I feel like I have come to a wall on something regarding tire size. My tractor has bald r4 tires on it, and I would really like to replace them with something more aggressive (hills and wet fields where I live).

I have read the threads about not being able to switch from r4 to r1 on the same wheels. Do people only run one size tire on a set of wheels? Is that because of the 4wd ratio? I feel like my 15x24 rear rims could fit 16.9x24 tires, but I guess I dont know...and I dont know if that would mess up the ratio with the front.

Just curios to know what I cannot find online. Trying to avoid spending the dough on new rims.

Well, you are right in some ways. Called my local shop and the price of a tire on the rim is cheaper than the cost of a tire alone, but I would be looking at $2000 to swap to r1s. That just seems like a bit much. Maybe r4s and chains are in my future unless I can find some aftermarket rims.

Is that factoring beyond the cost of replacing your bald R4s and buying chains?

 

[CaptainRedbeard]

Cost of replacing the r4s would be about $1000-1100, it looks like. If I replaced the r4s I wouldnt buy them at the dealer.

 

[SPYDERLK]

Hello,

I have been trying to learn all I can since buying a L3830, but I feel like I have come to a wall on something regarding tire size. My tractor has bald r4 tires on it, and I would really like to replace them with something more aggressive (hills and wet fields where I live).

I have read the threads about not being able to switch from r4 to r1 on the same wheels. Do people only run one size tire on a set of wheels? Is that because of the 4wd ratio? I feel like my 15x24 rear rims could fit 16.9x24 tires, but I guess I dont know...and I dont know if that would mess up the ratio with the front.

Just curios to know what I cannot find online. Trying to avoid spending the dough on new rims.

Well, you are right in some ways. Called my local shop and the price of a tire on the rim is cheaper than the cost of a tire alone, but I would be looking at $2000 to swap to r1s. That just seems like a bit much. Maybe r4s and chains are in my future unless I can find some aftermarket rims.

Is that factoring beyond the cost of replacing your bald R4s and buying chains?

Cost of replacing the r4s would be about $1000-1100, it looks like. If I replaced the r4s I wouldnt buy them at the dealer.

So, is that then a difference of $900 to 1K to make the change to R1 at the current condition of the worn out R4s?

 

[Dexterous]

Well, you are right in some ways. Called my local shop and the price of a tire on the rim is cheaper than the cost of a tire alone, but I would be looking at $2000 to swap to r1s. That just seems like a bit much. Maybe r4s and chains are in my future unless I can find some aftermarket rims.

I read all the time that R1s are cheaper than R4s (no personal experience though). Are you saying that they wanted $2000 for a new set of R1s on new rims and only $900-1000 to replace the R4s on your old rims?

 

[CaptainRedbeard]

I read all the time that R1s are cheaper than R4s (no personal experience though). Are you saying that they wanted $2000 for a new set of R1s on new rims and only $900-1000 to replace the R4s on your old rims?

The dealer quoted $2000 for R1 tires with rims. Their R4 tire only quote was around $1600, but I've had quotes from other tire shops that are closer to the $1000 range.

If possible, I'd like to revisit part of my original question, if anyone is able to answer it. Would I be able to cram some r1 tires onto my 15x24 wheels, or is that a no-go? I really don't know much when it comes to tractor wheels.

 

[SPYDERLK]

I read all the time that R1s are cheaper than R4s (no personal experience though). Are you saying that they wanted $2000 for a new set of R1s on new rims and only $900-1000 to replace the R4s on your old rims?

He would of course still have the old mounted R4s to mount chains on -- or sell. :confused3:

The inherent omnipresent traction superiority of R1s may be the deciding factor.​

 

[Wagtail]

... Would I be able to cram some r1 tires onto my 15x24 wheels, or is that a no-go?

No. The width of a R4 rim is wider than a R1... the tyre simply wouldn't sit or seal.

If you want to switch to R1 then you are going to have to go for the entire wheel, R1 rim and tyre.

 

[David Wayne]

I just replaced my r-1s with r4 on my L3400 so I have a set of wheels and worn r1 tires to get rid of. Not sure what size rim you need,
mine are 11.2-24 rear and 7-16 front but I will have to look to get the width.

 

[art]

The dealer quoted $2000 for R1 tires with rims. Their R4 tire only quote was around $1600, but I've had quotes from other tire shops that are closer to the $1000 range.

If possible, I'd like to revisit part of my original question, if anyone is able to answer it. Would I be able to cram some r1 tires onto my 15x24 wheels, or is that a no-go? I really don't know much when it comes to tractor wheels.

I don't know where to send you to get an ag tire wide enough with the right circumference to match the tractor drive train.

 

[LD1]

The dealer quoted $2000 for R1 tires with rims. Their R4 tire only quote was around $1600, but I've had quotes from other tire shops that are closer to the $1000 range.

If possible, I'd like to revisit part of my original question, if anyone is able to answer it. Would I be able to cram some r1 tires onto my 15x24 wheels, or is that a no-go? I really don't know much when it comes to tractor wheels.

Likely a no-go.

The R-1 option for that tractor was a 14.9-24 tire which is 147-148" RC And your current 17.5L-24's are 145" RC

A 16.9-24 tire jumps the RC to 155" and will cause 4wd issues.

The other issue is the fronts. Ag option was 8.3-16 but i assume you have the 10-16.5's. Cant get an R1 on the 16.5 rims. And the 10-16.5's were also a tad smaller on the front.....to match the fact that the 17.5L-24's were a tad smaller on the back as opposed to the 14.9-24 ag option.

Simply a new set of R4's on the back would make a world of difference since yours are bald. But if you want Ag tires....gotta stick to the 14.9's.....which I think would be a bad idea to try to cram on a 15" wide rim. And given the very slight difference in size between the front R4's and R1's......I think you can go either route. But again, if R1's are what you desire.....you need new rims up front too.

 

[CaptainRedbeard]

Likely a no-go.

The R-1 option for that tractor was a 14.9-24 tire which is 147-148" RC And your current 17.5L-24's are 145" RC

A 16.9-24 tire jumps the RC to 155" and will cause 4wd issues.

The other issue is the fronts. Ag option was 8.3-16 but i assume you have the 10-16.5's. Cant get an R1 on the 16.5 rims. And the 10-16.5's were also a tad smaller on the front.....to match the fact that the 17.5L-24's were a tad smaller on the back as opposed to the 14.9-24 ag option.

Simply a new set of R4's on the back would make a world of difference since yours are bald. But if you want Ag tires....gotta stick to the 14.9's.....which I think would be a bad idea to try to cram on a 15" wide rim. And given the very slight difference in size between the front R4's and R1's......I think you can go either route. But again, if R1's are what you desire.....you need new rims up front too.

Thanks for the info. I kind of figured it was a fool's errand, but I appreciate you clarifying.

I just replaced my r-1s with r4 on my L3400 so I have a set of wheels and worn r1 tires to get rid of. Not sure what size rim you need,
mine are 11.2-24 rear and 7-16 front but I will have to look to get the width.

Thanks for mentioning it. Looks like your rears are 10-24, and mine would be 12-24. I'm not sure how much of an issue that would be, to be honest.

 

[David Wayne]

Not sure what rim size you need, but mine are 6x16 and 10x24 rim sizes. If they are what you need let me know.
maybe we can work out a deal if you are interested. If not I will list them on craigslist.

 

[Texasmark]

ebay sells tires and rims at good prices, usually free shipping and fast delivery. On wheels, "Even Stephen" is wheel mounting width equals tread width. Moving on from there, thinner wheels mean more sidewall flexing at the tire/wheel intereface....can cause loss of air (all other things constant) in turns and on slopes, whereby moving out with the wheel width makes for stiffer sidewalls for a given tire/pressure under the same conditions.

Main thing to consider is "rolling circumference" for matching front and rears. The circumference you take off, the replacement has to equal to within a few percent.....really not terribly important on softer soil contact. Differences would be in turns while in 4wd operation (in 2 wd they push regardless of the ratio....that's why you have independent brake pedals) where the rear is larger would tend to push you into the turn rather than the front pull you out of the turn. Conversely if the front is larger it will do most of the pulling and fronts weren't made for that. Tractor data gives you a good place to start on popular and semi-popular tractors.

I spent a lot of time and money lately getting a ride to suit me. On my 2400, I wanted as you do, more traction on the rear and softer ride. Had R4 12x16.5 and replaced with new 8x16 wheels and 8x16 R1s. Both compliments of ebay. Really did the trick.....R1 being thinner, more weight per square inch of ground contact area, softer sidewall of the R1 vs 4 had some give at 10 psi but didn't fall off the wheel, or slip around the wheel when under traction at the lower pressures. I had previously made 4" spacers for the rears and the spacers set the R1s out just right.

 

[thoner7]

Sorry if this is off topic, but could one go from 14.9-24 tires to 16.9-24 without going to wider rims? This is for a 2wd tractor.

Online I'm reading they recommend a 13" wide rim for 14-9 tire and 15" wide for 16.9 but I'm wondering if it will still work.

Another question.... Do they sell 17.5L-24 tires in R1??