Man I was hoping someone would give a better reply to this...
Well, ok so I'm fairly light too and this used to never have been an issue, but last year I had an ebike that weighed a massive 42kg, and I weighed 70-ish. So total that together and you get 112kg right? Well, for a while the rear tire was a Schwalbe Big Apple 26X2.0, it was mounted on a 1" ish wide rim, and Schwalbe rates this tire at 125Kg. It was inflated just over the max sidewall pressure of 70psi. And, well it was OK but marginal, a bit more and things like going up a good sidewalk lip at speed would have snakebitten it, and going off curbs was something I avoided though I did it a few times and it didn't get nuthin.
My conclusion is that the weight they rate tires for is the total bike + rider weight.
Last edited by JeanCoutu; 07-15-07 at 04:39 AM.