Brian and Brian (BMKal), I used to haul, as an Owner driver for Roadfreighters and their low loaders had 20" low profile tyres, unfortunately they were retreads and I would blow at least one tread every trip, this was back in 1987 and I don't know if Nitrogen was available for tyres then.
The worst trip for tyres (when I had my own tri-axle 41" Fruehauf) was Sydney to Bourke and back, during summer, I used to keep the speed down, as tyre costs were coming out of my pocket, but till I got a full complement of cleanskins allround, I would blow at least 1 retread a trip. On the way back from Bourke on the Bourke to Nyngan stretch I came across a Shell Tanker with 3 blown tyres, it was around 50C and same as me he only had 2 spares, he wanted to borrow one of mine, but I couldn't take the chance, as I was carting a 20' reefer container with 22 tons of chilled horsemeat leaving for Germany that night from Port Botany. Gave him a lift into Nyngan and the local tyre place fixed him up, those were the days, bloody good riddance, must have been nuts, Regards Frank.

