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Old 10-31-16, 03:34 PM
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Bikes: 1980 Koga-Miyata Gentsluxe-S, 1998 Eddy Merckx Corsa 01, 1983 Tommasini Racing, 2012 Gulf Western CAAD10, 1980 Univega Gran Premio

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Originally Posted by T-Mar View Post
The helically reinforced steerers were used on all full SL/SP and above tubesets (i.e SL/SP, SLX/SPX, TSX, MAX, EL, Genius, etc.). Some sources but not all, refer to it being used on Cromor, so it may have been era dependent. The 59 is probably a reference to the frame size. I'm not sure about the P and 33, though the P may represent Prestige, which was the Columbus SL/SP model. It could also represent a heavier gauge fork, such as SP, as opposed to lighter SL.

Edit: 58-60cm was the frame range where most builders would transisition from SL to SP and some would even use SP gauge in blades, down tubes and chain stays on smaller frames.
As always, thank you, T-Mar! I thought the 59 may be for the frame. I've measured the seat tube at 58.4 cm c-c, and 59.5 c-t, so that would fit.

Did Tommasini call some frames 'Prestige' even before they started putting the 'Prestige' decal on the top tube? Was 'Racing' indeed a distinct frame model designation?
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