• Can anyone PLEASE help me identify my father's old bike. I've had no luck on the w.f holdsworth website.
    It's a biopace professional 531 frame. Shimano 501 full set (not sure if that's original or not).
    Has a lot of sentimental value to me which adds to the thrill of riding it. Identification and carbon dating would complete the puzzle. Thanks

  • Without seeing better pictures I'll guess mid 80s, they usually put the name on the top tube. When was biospace introduced? The badge on the headtube was a stick on affair from about 1980 onwards I think

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