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Respacing a 7 speed frame to 10 speed?(6 posts)

Respacing a 7 speed frame to 10 speed?Iwannapodiumgirl
Sep 10, 2003 5:42 PM
I am thinking of building up an old Colnago (mid 90's!) with 10 speed Chorus. However the rear spacing is for 7 speed (126mm) as compared to 10 speed (130mm).

On his website, Sheldon Brown suggests that steel frames may be respaced to fit a wider hub with no problem, just by bending the stays outward - cold setting.

Has anyone done this? How much does it cost? Is it safe for the frame?

Tia
re: Respacing a 7 speed frame to 10 speed?oldbutslow
Sep 10, 2003 6:55 PM
I have asked this in the component forum a got a resounding
"no problem" if you just lightly force the wheel in the
frame. No bending req'd. Eventually, the frame will set
itself to the new spacing - at least that is what I have
been told - ain't tried it yet.

I assume no responsiblity for the procudure :)
re: Respacing a 7 speed frame to 10 speed?LC
Sep 10, 2003 9:23 PM
Does not cost anything to shove the wheel in there. It will be hard at first and then get easier as the frame adjusts. Steel can bend a little with no problem.
I have a 7 speed (cassette rear wheel) that is already 130,,Spunout
Sep 11, 2003 3:33 AM
that must have been ahead of its time! Upgrade ready.

IWPG, you are right. Best thing about old school steel is that you can cold set it. You may not be able to do a wheel change on a free lap in a crit, but all will work fine.
i just did this for 9 speedrufus
Sep 11, 2003 7:12 AM
and just lightly worked the wheel into the spacing. the only problem i can see with just doing it this way rather than having the frame coldset is that the stays may not be in exact alignment-one side may be spread slightly more than the other. how badly this effects ride, i don't know.

i sent an email to peter mooney, a framebuilder in the boston area, and he charges $45 to spread the rear triangle on a stripped bike, more if he has to remove and re-install components.
Yes, can be spread, but alignment will be slightly off...Fez
Sep 12, 2003 7:48 PM
I think I read Sheldon saying that the spreading is usually not a problem for steel. Its just that the stays will no longer be perpendicular to the hub axle. They will be ever so slightly at an angle.

Does anyone know if this really matters?