21x12-8 inner tubes?

[jonstark]

Are any of you running inner tubes with the old ATV style wheels?
If so are you using valve stems secured in the rim by nuts or just plain.

Thx,
jon

[avidflyer]

I run tubes on my Kingfox tires which are same size as the Nancos, and the tubes are held in place with nuts on the valve stem inside and out. I did rip a valve stem off once when running to low of pressure and landed on pavement and spun the tire on the rim. JImChuk

[Dusty]

I run tubes with threaded stems. The stems have "o" rings to effectively seal the assembly if the tyre creeps and sheers the stem from the tube. The main reason I run tubes is I have witnessed the results of a ground loop where the tyre has pulled enough to deflate a tubeless setup with suboptimal results:(.
The guys with tubes usually return home with wads of nature hanging out of their rims and excuses to be made.