CST Tube 12"

What it is

CST 12 inch inner tube, boxed butyl tube for bike repairs in Hong Kong. The title says 12 inch. The tube fits 12-1/2 x 2-1/4.

Sizes

• 12-1/2 x 2-1/4, Schrader 32mm

Valve: Schrader AV, 32mm. Boxed only, not bulk.

Specs

Brand	CST
Wheel	12 inch
Pack	Boxed
Valve	Schrader AV, 32mm

Is this boxed or bulk?

Boxed. Jollymap does not sell the loose bulk pack of this tube.

Specifications and components follow the manufacturer's latest release and may change without notice. If in doubt, please contact us to confirm before ordering.

Last updated: October 2026