I have a TT3.6 (bought in 2006). With all my bikes I like to run thorn resistant tubes. I don't care about the additional weight. I prefer avoiding flats. I've never been able to find a thorn resistant 20x1.0-2.0 tube with presta valve. Has anyone ever found one?
Each time I have to deal with this I start pondering drilling the valve opening to allow for a shrader valve. How much will this compromise the strength of the rim? Has anyone does this?