Q: Can speed bumps wear out the inside of tyres if you straddle them?
A: This is exactly how speed cushions destroy the inner shoulders of car tyres. Always drive with one wheel over the centre of the cushion and one on the flat. You feel the bump, of course, but you don't suffer hidden tyre damage that could cause a serious accident.
SSS comment: When claims are made about safety devices, often the negative effects are ignored. We're missing data on how many have been killed by sudden tyre failure caused by speed humps.