Info needed: 9.00-16 tube stem size?

[rob love]

When I checked with my tire shop, it turns out a valve assembly that you vulcanize onto a tube will cost more than the complete tube. I was hoping to modify the available valve off center tubes to valve on center. The thought of $50 innertubes ended that. I think we paid about $16 a tube (USD) for the ones from Doberman. While I am by no means afraid to patch inner tubes, and do frequently when the leak is obvious, it is the slow leaks that take up too much of my time.

[Mike K]

Somebody pointed out to me years ago: its not good practice to have the valve stems protruding out beyond the rim edge, the stem can easily be broken off by hitting any passing object. Or even hit a bystander or other vehicle.

We were standing around looking at a club members F15A and John Bruce made the comment "that's bloody dangerous" the valve stems were protruding way beyond the rim edge

[rob love]

I've always heard that about the valve stems, but after 40 years am just about ready to file it under old wives tale. A lot of the Jeep tires had valve stems that extended a bit beyond the rim......never had to repair one for that reason. As to hitting bystanders, if they are close enough to be hit by the valve stems, then they are close enough to get hit by the fenders or the bumper.

[Lynn Eades]

Back in the day (when ever that was) the old tubes were rubber and they would stretch for miles. They were great tubes. Now they stretch and stay stretched. I'm not sure how far they can go.

[Jordan Baker]

Thanks for all the quick help.

Rob I got in touch with Dobermann Tire. Very easy to deal with and the tubes are on the way. Their price is awesome too

[rob love]

Originally Posted by Jordan Baker

Thanks for all the quick help.

Rob I got in touch with Dobermann Tire. Very easy to deal with and the tubes are on the way. Their price is awesome too

Glad to be of some help.

Or as the old grouchy warrant used to say: Always happy to share my opinion, even when it's not asked for.

[Russell Boaler]

On the subject of tube stems I've got a couple of 1100x20 tubes that are 50 odd years old that I was planning to re-use but the threaded tip of the brass valve stem is damaged (uneven face) and a normal air compressor connection won't seal on it (one of the dangers of having the valve stem extending too far from the rim I guess). I could file the end down to achieve a flat sealing surface but then the tip of the valve will protrude out from the valve stem which isn't good either. Does anyone know if there's a tool available out there that can re-cut the valve seat deeper into the valve stem?