CST Tube 27.5"

What it is

CST 27.5 inch inner tube, boxed butyl tube for bike repairs in Hong Kong. 1.75-2.125 and 1.90-2.125 are two different widths.

Sizes

• 1.75-2.125 Presta 48mm and 60mm
• 1.90-2.125 Presta 48mm, Schrader 48mm

Valve: Schrader AV and Presta FV. Boxed only, not bulk.

Specs

Brand	CST
Wheel	27.5 inch
Pack	Boxed
Valve	Schrader AV and Presta FV

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