I'm doing a build with this frame and have a possible issue with the T47 BB being very tight. I've never worked with this style, so I'm not sure what to expect. It gets hand tight after a couple threads and then really starts to get snug. The threads seem clean and it doesn't seem to be cross threaded. Both sides are the same. I don't want to get too rough with it and bind or break something. Any ideas?

Any idea if the max tire spec is accurate? I was hoping to fit some 650x2.2, but feel that might be pushing it.