1970/80s Peugeot roadbike project help

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HillyBen

Measure the seatpost size if possible. This will tell you if it's up in the PX bracket
26.4 is good, if smaller then look down the range

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BensBikeBits in reply to @HillyBen

Oh really. That's great to know. What's the PX mean??
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AlexD in reply to @HillyBen

I'm assuming that's down to a standard tube OD and then different thicknesses of steel is it?

I noticed that the heavy Cyril Guimard straight gauge frame in my loft is 25mm seatpost while the Gitane vitus 980 frame I ride is 26.4mm

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