That is beautiful. Single Speed? That`s no track bike!! LOL
It needs gears, and pretty ones that match it!! To tell you the truth it looks great enough as is.
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My bikes: 1970`s Roberts - 1981 Miyata 912 - 1980`s Ocshner (Chrome) - 1987 Schwinn Circuit - 1987 Schwinn Prologue - 1992 Schwinn Crosspoint - 1999 Schwinn Circuit - 2014 Cannondale Super Six EVO