Cenipar 20x8.00-8'' Inner Tubes, 20x8-8, 20x10.00-8, 20x10-8 Inner Tubes for Heavy Duty Cart,Such as Trunk, Tractor, Garden Carts,Golf Cart, Mowers, with TR13 Straight Valve Stem,Pack of 2

I recently had a rear tire go down on my riding mower due to a cut in the sidewall. I had to buy a replacement wheel at a local big box store ($119) because I had to finish the task. After closer inspection of the damaged tire, I determined I could probably just put a tube in it and keep it as a spare. I prefer this material composition due to its ability to withstand the environmental variations without breaking down. I use this type of tube in many of my wheeled equipment that have pneumatic tires. I use these tubes in my mower tires and my oxygen and acetylene tank cart. This particular inner tube will save me more money in the long term by not having to replace tires as often. These inner tubes are economical and thicker than most. They hold air longer than the natural rubber ones and they ride smoothly. These are versatile inner tubes and they are compatible with their stated tire size. They appear to be very durable. These tubes do not develop flat spots or lose air arbitrarily.

FIRST ORDER --- 5 STARS+ ALL DAY LONG --- September 23, 2022 Cenipar 20x8.00-8'' Inner Tubes,Tire Replacement Inner Tubes for Heavy Duty Cart,Such as Trunk, Tractor, Garden Carts,Golf Cart, Mowers, with TR13 Straight Valve Stem,Pack of 2 ~ $21.99 So I have quite a bit of experience with tubes aside from having a lot of my own equipment and having worked in shops. I've tubed hundreds if not thousands of tires. And after all that I'm a pretty die hard Carlisle guy when it comes to tubes. But a bit of a time crunch and these being 2 day delivery, and 2 for the price of 1 Carlisle tube with good reviews I rolled the dice. And I must say I'm skeptical but they do feel like surprisingly nice quality tubes. Feel like good quality rubber and nice thickness, and the thickness is consistent. I haven't used the tractor I put them in much yet, but got them in with no issues and they are holding air after 2 days. And being they felt surprisingly nice my hopes are cautiously optimistic. And I use the tractor they're in quite a bit not only cutting, a tenant cuts with it, and it also pulls a 4x8 trailer moving yard waste and sometimes logs. And I'm not easy on equipment so these will be put through the paces before fall is out. If I haven't edited this with one star and a detailed failure analysis you can assume they're holding up. I put them in tires that are in near perfect shape but just had slow leaks and are on nice smooth clean rims holding paint and no burrs. Tires were thoroughly checked for anything poking through, everything was clean and dry, and neither tube was disturbed during installation. So short of a puncture from me running over a nail or something I will be highly agitated if they don't last forever. A word of warning on packaging: These came completely bare in a smallish box. Not wrapped in anything, not so much as even packing paper or a cheap plastic bag... so be careful opening the box with a blade... a tube could literally be right up against the back of the tape you're cutting. ------------------------------------------------------ SECOND ORDER --- June 12 2023 --- 3 maybe 4 stars so dropped a star total 4.80/4.00-8" Tire Inner Tubes by Cenipar For Heavy Duty Cart,Like Hand Trucks, Garden Carts,Mowers And More, Pack of 2 -25% $11.99 First the 20x8-8s reviewed above are still going strong with no issues, I'd recommend them 100%. So after being pretty impressed with those I searched for Cenipar when I needed a 4.80x4-8. And with that size the tube itself feels great, just like the other, nice and thick good rubber, but the valve stem looks a bit flimsy. Kind of on the thin side, particularly at the base. Normally the valve stem will be a bit thicker at the base which is good to handle the torsion and rubbing it will inevitably get at the valve hole of the rim. These are straight all the way down. That being said the one I used is working fine so far, and the overall tube rubber was nice and thick and consistent, but I see the thin-at-the-base valve stem as a weak spot and potential point of failure. So revised summary... Still 5 stars for the 20x8-8, looked great in every way and still holding up to rough service... but dropped a star for the 4.80x4-8 having a less than impressive valve stem. You could still do way worse for a tube, it's not horrible. Main takeaway - some varying specs from size to size. Even at that, the one nit-pick with the 4.80x4-8 may still not be a deal breaker for the price and convenience, especially if the last. And again if there's no failure analysis update you can assume they are still going.

cat loves rubber, inflated and put on porch

A great pair of tubes. Thick rubber, heavey duty.

I had a slow leak on one of my lawnmower tires. I got tired of getting the air pump out all the time and I had tried to plug it a couple of times. One youtube video later and I was prepared to give it a shot. Very easy to install. I found that I only needed to break the bead on one side of the rim, spray some WD-40 on the tube and it was easy to insert. You have to be mindful of putting the valve stem the right way up. Before installing, you do need to knock out the existing stem in the rim and retrieve it from inside the tire. The secret I found to keeping the valve stem from disappearing into the rim was attaching the hose from the air pump. The tire originally recommended 10 psi and that's what I filled this tube. I didn't know what to think the next day when I went out and didn't have to pump that tire up. It's been a few weeks and haven't had a problem yet. You get two inner tubes. I decided to keep the second one if I need it. I think this will work pretty good. i think those who've had problems with this simply put it on with the valve stem facing the wrong direction. Doing that will stress it and cause it to fail. I would buy this brand again.