A30. 14x1.25 male spigot down
Links to photos of examples:
1978 Derbi Laguna original
1980 Derbi C5 Diablo original
1985 Derbi RD50 original
This motorcycle valve has a 7.7 mm spigot, for 1/4″ (6.3mm) fuel hose.
Links to photos of examples:
1978 Derbi Laguna original
1980 Derbi C5 Diablo original
1985 Derbi RD50 original
This motorcycle valve has a 7.7 mm spigot, for 1/4″ (6.3mm) fuel hose.