Loss of Air in Balloon Tyres

NZ Truth, Issue 1035, 26 September 1925, Page 16

Loss of Air m Balloon Tyres

The rate of loss of air from balloon tyres is the same as from high-pres-sure tyres, but because of the low pressure m the former loss of air is more quickly noticed. Engineers for some time have been conducting investigations into complaints for balloon tyres users that the low-pressure tyre loses air more quickly than the high -pressure tyre. A great many cases, when reported, were investigated and it was found that on highpressure tyres the average inflation is about 50 pounds. The high -pressure tyre user will let his tyres go a month before reinflating them and m that

period pressure will have decreased 20 or 25 pounds, or about 50 per cent. In balloon tyres the inflation is about 30 pounds and m the same length of time the decrease of. air pressure will be proportionately the same, leaving him with only 12 or 15 pounds pressure.