See more: Inner tubes
19" Inner tubes, With steel center valve, suitable for 3.00 -3.60 - 90/90 - 100/90, Metzeler
Finest quality butyl tubes, hold air much longer than natural rubber as butyl is non-porous. Stock type 16" inner tubes are available with moulded rubber off-set valve, steel off-set valve as well as steel center valve as used on later Harleys.