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  1. #1
    Elite Member
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    Holland, PA
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    Kubota L5740, Case IH 255, Gravely 8199G

    Default are my front tires wimpy?

    I've seen this discussed on other threads, but looking at the LS website reminded me to ask.
    My kubota has what seems to me to be relatively small R4's up front.
    LS Tractor USA
    If I look at a comparable LS, the front tires appear half again taller/larger. Perhaps this is a heavier
    tractor, which balances the flotation vs grip issues, but wouldn't going to a larger tire, and not necessarily that much wider,
    wouldn't that help performance?

    I almost always change out my car tires to get better quality than what the oem provides. TireRack does well by me.
    But tractor tires are super expensive, this is no impulse buy for sure, and I know the front tires need to provide a "coordinated"
    system with the rears. Would bigger be better here?
    Attached Thumbnails Attached Thumbnails -p1010723-jpg  
    2012 Kubota L5740HSTC3 with FEL and Long grapple, 1986 Case IH 255, Land Pride PD10 PHD, Land Pride RCR60 & RCF2084 mowers, Land Pride 4' box blade and rear rake, Fred Cain subsoiler, County Line potato plow, County Line 1 bottom plow, 1986 Gravely 8199G with tow behind DR rototiller, 50" deck+40" Gravely wing mower, Gravely snowblower, Swisher 44 rough cut mower,Ariens snowblower, Echo 450-18 & 600-24, Echo PPT280, 2006 JD LX280, , 1968 Cub Cadet 125, Husky-Speeco 35 ton splitter

  2. #2
    Elite Member Don87's Avatar
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    May 2010
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    4,226
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    SW Pa.
    Tractor
    Massey Ferguson GC2400

    Default Re: are my front tires wimpy?

    No, bigger on the front wouldn't be better. As you said, the tire size ratio has been figured into the gearing of the tractor, and going to a larger size can cause problems. It can tear out the front pumpkin.
    Don

    MF GC2400, FEL, 60in.MMM, 5ft. Cultivator, Single Bottom Plow, Bush Hog RTC48 tiller, MF 2360 front mount snowblower, 5ft backblade. BXpanded Piranha toothbar.

  3. #3
    Elite Member
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    Kubota L5740, Case IH 255, Gravely 8199G

    Default Re: are my front tires wimpy?

    Quote Originally Posted by Don87 View Post
    No, bigger on the front wouldn't be better. As you said, the tire size ratio has been figured into the gearing of the tractor, and going to a larger size can cause problems. It can tear out the front pumpkin.
    Makes sense, but why did LS spec such a larger tire, then compensate by gearing?
    Trying to figure out the advantage.
    2012 Kubota L5740HSTC3 with FEL and Long grapple, 1986 Case IH 255, Land Pride PD10 PHD, Land Pride RCR60 & RCF2084 mowers, Land Pride 4' box blade and rear rake, Fred Cain subsoiler, County Line potato plow, County Line 1 bottom plow, 1986 Gravely 8199G with tow behind DR rototiller, 50" deck+40" Gravely wing mower, Gravely snowblower, Swisher 44 rough cut mower,Ariens snowblower, Echo 450-18 & 600-24, Echo PPT280, 2006 JD LX280, , 1968 Cub Cadet 125, Husky-Speeco 35 ton splitter

  4. #4
    Veteran Member
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    Jan 2010
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    Piedmont, NC
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    Kubota L4610 & BX2230, Farmall Super M, Super A

    Default Re: are my front tires wimpy?

    Quote Originally Posted by daugen View Post
    I've seen this discussed on other threads, but looking at the LS website reminded me to ask.
    My kubota has what seems to me to be relatively small R4's up front.
    LS Tractor USA
    If I look at a comparable LS, the front tires appear half again taller/larger. Perhaps this is a heavier
    tractor, which balances the flotation vs grip issues, but wouldn't going to a larger tire, and not necessarily that much wider,
    wouldn't that help performance?
    You're doing apples and oranges here. The U5030 in your link is an ag utility tractor that compares with something like the Kubota M5140, not your L5740. The ag utility tractors are over a foot longer, have longer wheelbase, are heavier, and are designed for a different type of work than your "compact" L5740. They also have a 3 ft. wider turning radius vs. tractors with a compact type configuration, partly because they use those 20 or 24" front tires vs. the 16" ones on a compact. If you look at the LS compact model most comparable to your L5740, it would be the R4047, and it also has 16" fronts.

    As noted, you couldn't just put bigger tires on the front because of steering clearance issues and because the fronts would not turn at the right speed to match the rears in 4wd, causing damage to the drivetrain.

    I know it's hard to think of your L5740 as a "compact" tractor, but you know the old saying about "a rose by any other name"... it has a different configuration than a farm utiility tractor. If you find your work is putting you in situations where you have trouble with losing traction or sinking in a lot with the fronts, it could be that an ag utility unit would work better for you.

  5. #5
    Elite Member
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    Kubota L5740, Case IH 255, Gravely 8199G

    Default Re: are my front tires wimpy?

    Quote Originally Posted by Grandad4 View Post
    You're doing apples and oranges here. The U5030 in your link is an ag utility tractor that compares with something like the kubota M5140, not your L5740. The ag utility tractors are over a foot longer, have longer wheelbase, are heavier, and are designed for a different type of work than your "compact" L5740. They also have a 3 ft. wider turning radius vs. tractors with a compact type configuration, partly because they use those 20 or 24" front tires vs. the 16" ones on a compact. If you look at the LS compact model most comparable to your L5740, it would be the R4047, and it also has 16" fronts.

    As noted, you couldn't just put bigger tires on the front because of steering clearance issues and because the fronts would not turn at the right speed to match the rears in 4wd, causing damage to the drivetrain.

    I know it's hard to think of your L5740 as a "compact" tractor, but you know the old saying about "a rose by any other name"... it has a different configuration than a farm utiility tractor. If you find your work is putting you in situations where you have trouble with losing traction or sinking in a lot with the fronts, it could be that an ag utility unit would work better for you.
    great advice, thanks.
    2012 Kubota L5740HSTC3 with FEL and Long grapple, 1986 Case IH 255, Land Pride PD10 PHD, Land Pride RCR60 & RCF2084 mowers, Land Pride 4' box blade and rear rake, Fred Cain subsoiler, County Line potato plow, County Line 1 bottom plow, 1986 Gravely 8199G with tow behind DR rototiller, 50" deck+40" Gravely wing mower, Gravely snowblower, Swisher 44 rough cut mower,Ariens snowblower, Echo 450-18 & 600-24, Echo PPT280, 2006 JD LX280, , 1968 Cub Cadet 125, Husky-Speeco 35 ton splitter

  6. #6
    Veteran Member SSdoxie's Avatar
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    Cumberland Plateau, TN
    Tractor
    Bobcat CT225

    Default Re: are my front tires wimpy?

    The tractor pictured on the LS first page of the website is a Utility class tractor, their U series. kubota L series is still in the compact class. If look at the LS compact models R series you will find they have the simialr smaller front to rear tire ratio as Kubota and everyone else. LS doesn't list a compact in HP comparable to the L5740, their highest HP model is similar to the L4740. Kubota's M series are Utility and have larger front to rear tire ratio.
    Dennis

    CT225 w/7TL QA FEL, 60"tooth dirt bucket, 68" smooth bucket, Pallet Forks, Bale Spear. Hydrualic top llin, QH, 48 RC, 60" tiller, Angle blade, Landscape rake, Carry-all, Post hole auger.

  7. #7
    Veteran Member
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    S. W. Virginia
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    Kubota B3200, Ford NAA, IH 454D, Case 1845C

    Default Re: are my front tires wimpy?

    FWIW, the kubota MX4700 and MX5100 use considerably larger tires and it is the same compact grand L 'chassis'. So you could upgrade (all around I'm guessing) to the MX4700 tires for a more beefy front tire.
    Kubota B3200
    Ford NAA Jubilee
    International 454D
    Case 1845C skid steer
    JD 265

  8. #8
    Super Star Member
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    Missouri
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    Kubota, John Deere, Case, Massey Ferguson, Ford

    Default Re: are my front tires wimpy?

    Quote Originally Posted by daugen View Post
    great advice, thanks.
    Agreed, very good post, look at the relatively small front tires on commercial backhoes. Increasing tire diameter seems to decrease the ability to turn and I have seen this reported in connection to putting bigger tires on cars and trucks.

  9. #9
    Elite Member ovrszd's Avatar
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    Missouri
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    Kubota M9540, JD2210

    Default Re: are my front tires wimpy?

    I agree with everything that's been said. And having gone thru the B series, L series and now M series of Kubotas, they are each built for a general purpose. If your current tractor fits your general purpose needs then stick with it, small tires and all.

    One of the things I disliked most about my L4400 was the short front tires. I heavily used the loader in timber land. If you tried to cross any sizeable ditch with a load the front tires in the ditch would always stick you.

    With the M series the front tire height overcomes a lot of obstacles that stopped the L and the smaller B models. Surprisingly my M9540 turns amazingly tight. I don't know the exact turning radius but for it's size, it's very small.

    In the end,,,, taller front tires are very expensive because you have to buy a complete tractor to get them!!!
    Richard
    Kubota M9540, JD2210

  10. #10
    Elite Member
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    Kubota L5740, Case IH 255, Gravely 8199G

    Default Re: are my front tires wimpy?

    Quote Originally Posted by ovrszd View Post
    I agree with everything that's been said. And having gone thru the B series, L series and now M series of Kubotas, they are each built for a general purpose. If your current tractor fits your general purpose needs then stick with it, small tires and all.

    One of the things I disliked most about my L4400 was the short front tires. I heavily used the loader in timber land. If you tried to cross any sizeable ditch with a load the front tires in the ditch would always stick you.

    With the M series the front tire height overcomes a lot of obstacles that stopped the L and the smaller B models. Surprisingly my M9540 turns amazingly tight. I don't know the exact turning radius but for it's size, it's very small.

    In the end,,,, taller front tires are very expensive because you have to buy a complete tractor to get them!!!


    HMMMMMM. The tractor I almost bought was a M9540, it did everything I wanted except be trailerable by my Suburban, which I had just bought, and was not
    about to go buy a diesel dually to haul it. That's another 60K...
    So I went down a size; guess my original mindset didn't...
    I am reminded of what I own every time I lift up the back end unintentionally, weight box or implement on and all.
    But I am also very happy with what I have, and after spending fifty hours in the woods with it, wonder if the 9540's width and height would
    have made that even more challenging. So I am content with what I have. But if I move to a bigger place...hmmm.
    2012 Kubota L5740HSTC3 with FEL and Long grapple, 1986 Case IH 255, Land Pride PD10 PHD, Land Pride RCR60 & RCF2084 mowers, Land Pride 4' box blade and rear rake, Fred Cain subsoiler, County Line potato plow, County Line 1 bottom plow, 1986 Gravely 8199G with tow behind DR rototiller, 50" deck+40" Gravely wing mower, Gravely snowblower, Swisher 44 rough cut mower,Ariens snowblower, Echo 450-18 & 600-24, Echo PPT280, 2006 JD LX280, , 1968 Cub Cadet 125, Husky-Speeco 35 ton splitter

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