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  1. #1
    Bronze Member
    Join Date
    Dec 2009
    Posts
    95

    Default Tire tube for Kubota B21 - front Tire

    Hello everyone - I have a 1997 kubota B21 with a leaking front tire, slow leak around the bead. I would like to simply put an inner tube in the tire but I am not having any luck finding a tube for a 23 X 8.5 X 14 wheel.

    Any help would be appreciated - I tried the slime, probably help for a short term fix but I want a long term fix. I did speak to a garage and the guy thought that most tractor tires have inner tube so that you do not rely on the bead seal.

    Any suggestions or help would be appreciated.

    Thanks

    Scott

  2. #2
    Member
    Join Date
    Dec 2008
    Posts
    28
    Location
    Michigan
    Tractor
    2004 B-21

    Default Re: Tire tube for Kubota B21 - front Tire

    I bought a used B21 about a year ago. Had a slow leak in one of the front tires. I ended up going to discount tire for a replacement tube, (mine has tubes on the front, tubeless on the rear). The tires were pretty worn, and so I ended up buying a new tube, tire and warrenty for around $150. I went back a week later and got the other tire and tube replaced. By the way, these tires and tubes were not in stock at the local location, but it only took a couple of days to transfer them in.

    I knew the front tires were not in that good a shape but was hoping to get by for awhile... I'm pretty frugal, but decided while ordering the tube that good tires were a smart investment. Hope this helps...

  3. #3
    Elite Member dfkrug's Avatar
    Join Date
    Feb 2004
    Posts
    4,662
    Location
    NorCal
    Tractor
    05 Kioti CK30HST w/ Prairie Dog backhoe

    Default Re: Tire tube for Kubota B21 - front Tire

    Scott, you can use any automotive 14" tube. I just ordered some tubes
    from AgriSupply.com.

    That said, SLIME is amazing stuff, which I discovered only a few years
    ago....it can be a "permanent" fix. At least until you wear out your
    front tires and get new ones. BTW, I got some new blem R4 tires that
    size from Nebraska Tire for only $60, delivered.

  4. #4
    Super Star Member Egon's Avatar
    Join Date
    Aug 2001
    Posts
    17,779
    Location
    Nova Scotia, Canada

    Default Re: Tire tube for Kubota B21 - front Tire

    with a leaking front tire, slow leak around the bead.
    Perfect situation for slime or other stop leaks adatives.

    Otherwise dismount the tire bead, clean the rim , apply lots of sealant to bead and put it all back together again.
    Egon
    50 years behind the times
    Livin in a
    Worn out skin bag filled with rattlin bones

  5. #5
    Elite Member gwdixon's Avatar
    Join Date
    Jul 2009
    Posts
    2,616
    Location
    Northern CA

    Default Re: Tire tube for Kubota B21 - front Tire

    Try Googling "23x8.50x14 tube". Lots of hits.
    2009 Kubota M7040, R1s, LA1153 FEL, fork lift, 3 rear remotes, T&T
    2002 Kubota L48 TLB, 12", 18", 24" HD buckets
    2001 Kubota BX2200, Turf, LA211 FEL
    7.5' Howse 3PT disc, 88" Gearmore 4G4 box scraper, 4' box scraper, Gearmore GB85 blade, LandPride RCR2596 cutter, 6', 4' flail mowers, 6', 4' rototiller, 4' Bush Hog cutter, HD subsoiler, Bearcat 70554 chipper, Bush Hog PHD w/ 12", 6" augers, Ford 101 3-bottom plow, 8' land leveler, 6' rake, lots of misc.

  6. #6
    Veteran Member Dusty's Avatar
    Join Date
    May 2000
    Posts
    1,053
    Tractor
    bx1800

    Default Re: Tire tube for Kubota B21 - front Tire

    I have a BX 22 that has constant leaks around the rim. Just last week, I found that the wheel was spinning on the rim. The cause is two fold.. kubota did a great job painting the rim, and the tubeless tire bead slips on this paint. The other problem is that when you use Rim Guard for ballast, it acts as a lubricant. I have found that if I inflate the tire to the maximum on the tires specification, that the problem goes away for a while. The only real solution is to remove the tire, and sand the inside lip of the rim, which is more work than I want to do. If the tires were not filled with Rim Guard, it would be an easy fix, however, I don't have the equipment to pump the liquid our or to put it back in, so I just live with it...
    I'll be the last one to let you down.

  7. #7
    Platinum Member Dead Horse's Avatar
    Join Date
    Feb 2009
    Posts
    627
    Location
    New Hampshire

    Default Re: Tire tube for Kubota B21 - front Tire

    Quote Originally Posted by Egon View Post
    Perfect situation for slime or other stop leaks adatives.

    Otherwise dismount the tire bead, clean the rim , apply lots of sealant to bead and put it all back together again.
    That is what I did. The key is you have to get both surfaces clean and smooth (sanded), then you can grease 'em up and remount.

    Even with a plug in one, they both hold air, just fine.
    "We a two tractor family"

  8. #8
    Elite Member dfkrug's Avatar
    Join Date
    Feb 2004
    Posts
    4,662
    Location
    NorCal
    Tractor
    05 Kioti CK30HST w/ Prairie Dog backhoe

    Default Re: Tire tube for Kubota B21 - front Tire

    Quote Originally Posted by Dusty View Post
    The other problem is that when you use Rim Guard for ballast, it acts as a lubricant. I have found that if I inflate the tire to the maximum on the tires specification, that the problem goes away for a while.
    Yeah, you are in a tough situation. Removing fluid from the tire is a big
    job, and filling them ain't that easy either. An inner tube won't work too
    well for leaks in your case since as soon as the tire spins on the rim, it
    will break the valve stem of the tube.

    Your best bet is to keep the pressure maxed out to minimize leaks and
    spinning.

  9. #9
    New Member
    Join Date
    May 2014
    Posts
    1
    Location
    Ocala, FL
    Tractor
    Kubota BX2350

    Default Re: Tire tube for Kubota B21 - front Tire

    I have BX2350 with 18 x 8.50 x 10 front tires. Does anyone know where I can get a 18 x 8.50 x 10 tube. Can find lots of 18 x 8.5 x 8 tubes but 8" is too narrow and will split.

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