Old 09-30-12, 11:25 AM
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Originally Posted by xn7 View Post
anyone know the top tube length C-C on a 52cm '85 ironman? what sizes were they available from between 49-53cm? by 2cm increments?
The advertised top tube length on a 52cm, 1985 Ironman was 21"/533mm ctc. The 1985 model was advertised in imperial measurements but the available frame sizes were roughly 50, 52, 54, 56, 58, 60 and 64cm. As RT stated, they're center of BB to top of top tube.
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