$ 3.99
This is one (1) 24 x 1-3/8" (ISO 540mm) inner tube with a standard Schrader valve.
$ 3.99
This is one (1) 12-1/2 x 2-1/4 inner tube with a standard Schrader valve.
$ 3.99
This is one 14"x1.75"-2.125" inner tube with a standard Schrader valve.
$ 3.99
This is one 14" x 2.125" inner tube with a standard Schrader valve.
$ 5.99
This is one (1) 16 x 1" (349mm) inner tube with a Presta valve.