The Huret Jubilee front derailleur was made both for English gauge seattubes, 28.6 mm OD, and French gauge seattubes , 28.0 mm OD. The English version usually requires a shim to install on a French tube. The French version cannot easily fit an English tube and I imagine quite a few have been damaged trying to force them onto English gauge seattubes.
Regards,
Jerry Moos Big Spring, TX
Michael Thompson <meauxtown@yahoo.com> wrote: I have just found (and bought) three nos huret jubilee front derailers, to match the two rear changers of the same vintage I already had. Can someone tell me why they sometimes break when attached to the seat tube? Should I resize the inside of the clamp before an install? If so, to what size? Thanks, Michael Thompson Monroe, Louisiana
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