+1 and I'll ask again. rbrides, what are you trying to achieve? Fewer puncture flats or protection from pinch flats or both? We're all just guessing at this point and could answer your question better knowing what you're looking for. Also, check reviews on Amazon, web bike sellers, etc., of some of the inserts available. After reading many of these I decided none were for me as they all seemed to have some drawbacks that would have been made them worse than just getting a stiffer sidewalled and more puncture resistant tread tire even if it was on the heavier, slower rolling side but still rode better than any tire with inserts.