I rode Mikes' 12 tooth 1" pitch cog today and must say bravo. I was running a slightly stretched chain (1/16" in 12" section) but not a sound. Dead Silent. 24t x 12t ring/cog combination. I changed out the 11t Ichi. The bikes' gearing changed noticeably, speeding the spin up so neutral seemed easier and high was just right. Low seemed to be real low, more useable when needed. 3spd TCW Sturmey. Very interested in putting the bigger 26t Shelby front chain~ring back on.
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