If you're using an S&S case, tubes on 700c rims must be fully deflated to close the lid of the case. I use a Topeak Road Morph pump ... doesn't take long to get to 100 psi x 2. Make sure that Bilenky agrees that the frame halves can be coupled without torquing the frame. Most welders get it "almost right". The downside of S&S couplers is they weigh alot, and the tool weighs alot, but when coupled, it rides like it a solid frame even on pavé. The same cannot be said for the Ritchey Break-Away system used on the Dahon Allegro and a few other models.