Quote:
Originally Posted by Jordan Baker
I would think the run flats used on the earlier truck would add considerable weight.
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Without research, my uncertainty was the net gain/loss between 4 runflats and 5 regular assemblies. I knew runflats felt heavy to handle, the numbers show how much.
From AEDB Vol 4, for 9.00-16 (to suit 15A trucks) (weights vary by tire brand):
Pneumatic - cross country: tire&tube approx. 90 pounds, wheel 67 pounds, 5 assemblies = 785 pounds
Pneumatic - highway: tire&tube approx. 87 pounds, wheel 67 pounds, 5 assemblies = 770 pounds
runflat - cross country: tire&tube approx. 136 pounds, wheel 67 pounds, 4 assemblies = 812 pounds
So, 4 runflat assemblies total about 30 pounds more than 5 cross country pneumatic assemblies.
However, for fun I checked 10.50-20 sets and they come out about equal for runflat and pneumatic cross-country tires and if you choose the heaviest pneumatics, the set actually weighs more than the runflat set.