Schwalbe No. 4 Inner Tube - 16/18"

16/18 inch inner tube with different types of valves.
Extreme air pressure stable! The rubber compound makes it possible: less air leakage and less to pump. Extremely reliable! Quality control for safe riding pleasure: each Schwalbe tube is checked twice on air retention in the factory.

Fits the following dimensions:
37-340 (16 x 1 3/8)
28-349 (16 x 1 1/8)
37-349 (16 x 1 3/8)
28-355 (18 x 1 1/8)
35-355 (18 x 1,35)

In general valves can be separated into three different groups :
Presta valve: Sclaverand valve,Race valve, French valve
Dunlop valve: Wood, Bicycle or Dutch valve
Schrader valve: Standard, Car or Moto valve

Manufacturer item code: 10410311
10410310
10410313
Valve type: Dunlop (Wood) ||| Presta (Sclaverand) ||| Schrader (Auto)
Weight supplement: manufacturer information