Vintage Shimano 600 FC-6400 Left Crank Arm 175mm Ultegra Japan Square Taper Model: Shimano FC-6400 (stamped on arm) Length: 175mm (stamped) Origin: Made in Japan (stamped VIA JAPAN) Drive Type: Square Taper (JIS), 9/16" pedal threading Weight: 205 grams (actual, shown on scale) Single left (non-drive side) crank arm only – no fixing bolts included Era: Vintage (mid-late 1980s to 1990s Ultegra/600 group) Brand logo stamped SHIMANO on arm Great for vintage road or touring bike restoration projects matching FC-6400 groupsets
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