Quote Originally Posted by sandra View Post
I have been curious about this. Can you use either a presta tube or a Schraeder and vice versa? Does that just depend on the opening of your wheel or what?
No, you can't. You can't use a presta in a schraeder because the tube will tear around the sharp hole. You can't use a schraeder in a presta because the stem won't fit through the hole.
You can use a Presta in a shraeder rim hole using an adapter, I've done this on my trike because I prefer presta valves.
http://www.hostelshoppe.com/cgi-bin/...sory=983921905