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Replacing Cat Trax Tires  Bottom

  • I’ve got a set of Cat Trax that are 25 years old. They’re in decent shape but the tires no longer hold air.

    Does anyone have experience with changing the tires themselves? I basically just have screwdrivers and prybars to work with, but I would prefer not to take the wheels to a shop if it can be avoided. Also, checking Murrays’ website, replacement tires are $100 vs. $30 for tubes, so I would probably go the tube route. Anyone have experience with using/installing innertubes?

    sm
  • I have lots of experience changing motorcycle tires and tubes. You need a couple tire irons like the ones at Harbor Freight:
    https://www.harborfreight…ml?_br_psugg_q=tire+iron

    If you are putting tubes in you just need to pop one bead off. Put talcum powder on the tube so it will slide on the tire. Put the tube in, inflate & deflate it a couple of times to get the wrinkles out. Put the bead back on and inflate/deflate a couple more times. Lube the bead with soapy water or actual bead lube. Then fill it up to seat the bead and you are set.

    I also have a tool that breaks the bead. I don't know how tightly these beach tires hold onto the bead.

    --
    Bryan in Poplar Grove, IL
    Supercat 17 owner
    --
  • These tires have really soft, flexible sidewalls and will not put up a lot of resistance to coming off the rim. You need to push the bead into the center of the wheel,then slip a pry-bar or tire iron under the bead an pull up. Keep the bead in the center of the wheel on the opposite side of where you are dismounting the tire and be sure to pad the rim with something like milk-bottle plastic to prevent scratching up the finish. You will need to cut off the tubeless valve stem to feed the inflation stem from the tubes When putting the tire back on the rim, just keep the tire bead in the center of the wheel, and you will have lots of slack to just push the tire onto the rim. I think the biggest problem with mounting Cat Trax is getting the tires to set the bead so they take air. That won't be a problem with tubes.



    Edited by tominpa on Mar 15, 2021 - 04:50 PM.

    --
    Tom
    NACRA 5.7 (1984 Sail 181)
    Pennsylvania
    --
  • I have always used a straight claw hammer, putting the claw between the tire and rim and moving the hammer side to side. It has always worked to break the bead. I reach in cut off the valve stem. I put the tube in remembering which side the valve stem hole is located on (very important) Follow Waiex191 instructions on inflating and deflating.
  • I found that letting the tires sit out in the sun and heat up made the process very easy. Beyond a large screwdriver and pry-bar you should be able to do everything without special tools. These tires are far easier than a car or trailer tire.
  • Changing the tire is not that big a deal, but takes patience and some physical effort. You can get brand new Nanking tires off Wally world.com for about 30 bucks each. Thats about what I spent. The problem is reinstating them to take a bead. Have to take to a tire shop and get them to use an air cannon. Dont use the flammable spray and lighter thing...didn't work well for me...

    --
    Chuck C.
    H21SE 408
    --
  • Thanks for the feedback. I got the bead popped off the first one without too much effort using a pry bar and large screwdriver. Placed the order for the tubes, so hopefully will be good to go in the next week or so.

    sm
  • Can one of you forgive my laziness and provide a link to the tubes? I've got a couple older tires I need to rehab.

    --
    Jeff R
    '88 H18 "Jolly Mon"
    '10 C2 USA1193
    NE IN / SE MI
    cramsailing.com
    --
  • Here you go https://www.walmart.com/i…co-N800-21-12-8/55346860

    Here is a related BeachCats thread where "charlescarlis" posted about using these tires https://www.thebeachcats.…opic/topic/17793/start/0

    --
    Tom
    NACRA 5.7 (1984 Sail 181)
    Pennsylvania
    --
  • I really need to change my screen name...

    Chuck

    --
    Chuck C.
    H21SE 408
    --
  • Murrays tubes.

    https://www.murrays.com/product/13-1401-9/

    sm



    Edited by Dogboy on Mar 17, 2021 - 06:26 PM.
  • Thanks guys. On order. Appreciated.

    --
    Jeff R
    '88 H18 "Jolly Mon"
    '10 C2 USA1193
    NE IN / SE MI
    cramsailing.com
    --
  • Just a quick follow up, this turned out to be a pretty easy job. Tubes showed up today and installed in about 20 minutes each. Popping the bead off was just a matter of getting a prybar between the tire and rim and separating the two while pushing on the tire. Once the tire is separated, cut off the old stem. Then I put a healthy coating of talc on the tube and inside the tire and inserted the tube. I threaded the stem through the hole in the wheel and inflated the tire until it started to get firm. Then I coated the edge of the tire with dish soap and kept pumping (I used a bicycle pump). The bead seated itself 90% of the way around. Then I just bounced the tire on the un-seated side and it popped on the rest of the way. The sidewalls of the tires have some dry rot, but hopefully this gets me a few more leak-free years. Thanks for all who provided advice.

    sm
  • way easier than replacing the entire tire.... You should get several more years if you hide them from the sun.

    Cool it worked so easily and probably what I should have done...

    --
    Chuck C.
    H21SE 408
    --

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