where can I order solid 16" inch tires for my bike trailer?

Bell makes a foam insert called No Mor Flats you can get them at Walmart.

http://www.amazon.com/Bell-No-Mor-Flats-Bike-Inner...

Edit:

A second option would be Mr Tuffy tire liners. I would try that first.

http://www.amazon.com/s/ref=nb_sb_noss?url=search-...

Edit:

The punctures on the side are caused by too low a pressure in the tires and it pinches the tube on the rim. Use more air pressure and avoid pot holes and curbs.

16 Inch Bike Tires

Your additional information would indicate that your punctures are caused by low tire pressure or perhaps defective rim tape. Solid tires or even flat proof inner tubes are going to make that trailer very hard to pull, rolling resistance will increase substantially. Check your tires carefully, and inflate them to the correct pressure, not only will it cure that flat problem, the trailer will be much easier to pull. The tires will probably have a recommended pressure embossed on the side. That pressure may seem high to you but it will be correct. Tire lose pressure normally over time, they should be checked every couple of weeks

Marian

The issue of the flats is caused by 1) too much weight 2) Not enough air. Probably the air issue. Before every ride you need to check the air pressure in you bike AND trailer tires. Fill them up if they are low. If you do that, and purchase Mr. Tuffy tire liners, you will probably rid yourself of flats. IT IS MUCH BETTER than solid tires or gels or foam inserts,,,, they are REALLT that bad!

Soccerref

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RE:

where can I order solid 16" inch tires for my bike trailer?

I've had problems with my trailer that is pulled behind by bike that my two youngest kids ride in. The tires keep poping. I would like to order some solid tires for it. Please don't recomend the type that have the fix a flat slime in them that fix their own flats, I've tried them and...

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Bub No offense..... WHY? They are horrible to ride on. Is it because you don't like flats. Fixing them is EASY! Once you learn it takes just a few minutes. Plus, the majority of most people's flats are because they don't check and fill up their tires before each and every ride. The other thing you can do is to Also add Mr Tuffy tire liners. They should virtually end flats for thorns, glass, and metal slivers. Soccerreft

uh 32 inch tires? no way solid bad idea wle