EST. 1982

Specialized Roll 650Bx1.75-2.4" Tube / 40mm Schrader

Size Chart

27.5" x1.75-2.4" Tube with 40mm Schrader - suitable for the Specialzied Roll. 27.5" is the same as 650b.

Our standard tubes use a molded method of construction, ensuring a consistent thickness of butyl rubber.


What Size Do You Need?

Check and compare the relevant numbers on your existing tyre or tube with the sizes listed here.

Which Valve?

Schrader Valve = Fatter Car Type Valve

Presta Valve = Skinny Valve. Also known as French or High Pressure Valve.