chrome-sleeve snap-in valves,for use up to 65psi/4.5bar cold inflation pressure maximum. TYNO A B RIMHOLE TR413C 32 42 11.5 TR414C 38 48 11.5 TR418C 51 62 11.5 TR415C 32 42 15.9 TR413FC 32 42 11.5 TR414FC 38 48 11.5 TR418FC 51 62 11.5