For the young'ens on the List, back in the Dark Ages, cars had wire wheels (for lightness, brake-cooling, & just plain cool-ing effects). Problem was (is) , air escaped thru the spoke holes, so inner tubes were developed, to retain air pressure. But, the tubes tended to promote wheel imbalance, heat build-up, and the spokes themselves, could abrade the tubes, and develop "blow-outs" if the tube were catastrophically punctured. Old-time cars had to carry spare tires AND tubes. Most outings included at least one stoppage for "flat" repair. Now, go to bed, and be quiet. |