On Wednesday, March 22, 2017 at 10:57:14 AM UTC-7, jbeattie wrote:
I needed to make a quick tire change this morning (flat, worn out front tire), and I went to throw a wire-bead Gatorskin on a CR18 rim. Goddamn, is this a 650B tire? It wasn't even close. Nonetheless, I did not wrestle with it for an hour or even five minutes. I slapped on an old folding Bontrager sale-table tire and got to work. I'll investigate further tonight. CR18s have shallow rim wells like MA2s, but I've had a Gatorskin on that rim in the past. I wonder if there are manufacturing tolerance problems.

-- Jay Beattie.

I remember 10-15 yrs ago there was a string of really good prices on conti 3000s at Performance. I stocked up and they were lumpier than ****. It was like the wheel needed to be balanced after they were mounted.