This system results in approximately a 4:1 reduction in force needed to lift a load. For example a 40kg load will require a force of 10kg on the strap....
I am not advocating the use of the 4psi rule, but a quick internet search will indicate that many people are using this rule....
(Forum post now posted as a Blog at the request of Members) To my surprise I found that I had been operating my existing tyres well beyond their design limits and I am lucky ...