[Jack Innes]

A few points to add. It is wise to coat the inside of the tire with talc (baby powder - the talc kind) to allow the tube to move in use without chafing. The talc also is a good lubricant to aid in installation. The tube should have just enough air added to give it shape but no pressure. Use a chain type stem tool to keep the stem from pulling back into the tire during installation - it is much easier to keep the stem in place during installation than to locate it properly once everything is together. Once all together, inflate the tube fully then let ALL of the air back out, then re-inflate - this allows any wrinkles in the tube to flatten out . The rule of thumb on inflation has generally been 20 psi per inch of tire width for clinchers. ie. 3 1/2 X 20 = 70psi, 3 X 20 = 60psi etc. Too little pressure can cause rim cuts & the tire can come off at the bead.

Personally I find it easier to change the tire on the car - but most of the last 100 or so clinchers I have changed were on non demountable rims anyway. Often a nice warm, pliable tire can be installed on a clean, sound rim without irons at all.