Tire Tube Question

[egstandard04]

Does a 21 inch tube with a side mount air valve even exist? All I can locate are center mounts.

[JohnCA58]

Probably not,  been trying to locate a 18 in. side valve tube,  none in exitance. 

[ThumperDeuce]

Do you mean a tube with a 90 degree stem?

http://www.americanmototire.com/catalog/index.php?cPath=610

[JohnCA58]

not on my end,  need a side valve tube for 18 in.

[egstandard04]

I don't think so. Doesn't a 90 degree valve stem come out of the center of the tube? In other words, it's for a center hole rim but turns on a 90 for ease of airing up?

[ThumperDeuce]

Probably not,  been trying to locate a 18 in. side valve tube,  none in exitance. 

I didn't know a side valve existed before this.  The description says side metal.  I think they are referring to the valve.  This is the largest size I could find:

http://www.americanmototire.com/catalog/product_info.php?products_id=3676

[kristian]

why would you want a side valve on a 21 wheel???  side valves are placed on tubes off center so fitting the tube in a center mount rim would not work anyways if such a thing existed.  just sayin

[egstandard04]

Who said anything about putting it in a center hole rim? I want to put it in a mag wheel that has a side valve hole. The mag is a custom two piece that won't hold air anymore. If it was mine I would junk it.

[kristian]

  my bad