I winced when I bought them, but given the full cost of the conversion (Riv doesn't stock fixed 650B wheelsets, so I had to go custom), it seemed one might as well go all the way with it. I'm a bit of a weight weenie when it comes to tubes and tires so I'll probably stick to the EL's unless they aren't available, though I kind of covet the white tread tires. At this point just waiting to have a flat so I can swap in some extra-light tubes.
