$20 for each tube. Normal tubes are about $12 so considering it's only robbery, not extortion.

Using kevlar beaded larsens at the minute. Their sidewalls don't seem to rigid to me. And I seem to be flatting every ride at the minute, hence the stans path.

Yeah, do the talc trick sometimes. I've never had problems with pinch flats though. The high volume Larsens seem pretty good with preventing that.