I have a Nitto Technomic (26.0) stem, but it won't allow my new Cinelli Altera handlebars to fit through! Won't get through that last bend without crazy force that i'm not willing to apply. Could I solve this by maybe getting a stem with 26.4 fitting and then using a shim? If I can't get a quill stem to work with the Cinelli Altera, I guess I need to find another ergo bar...these Nitto B-123s suck with the over-the-top grip position.