"Paul Southworth" <
[email protected]> wrote in message
news:uew0a.31874$A%[email protected]...
> In article <
[email protected]>, John Rees
> <
[email protected]> wrote:
> >On 4 Feb 2003, Qui si parla Campagnolo wrote:
> >
> >>isk-<< Is there a way (without replacing the hubs) to adapt a 7sp
threaded
> >>freewheel road wheelset to run 9sp shimano?
> >>
> >>Nope-
> >>
> >>
> >
> >I'm curious as to what is being attempted here. To the original poster:
Are
> >you trying to upgrade an older bike to 9sp? Or are you trying to take an
older
> >wheel and use it on a newer bike???
> >
> >If it's the second case, It's hard to imagine a 700 wheel with a threaded
hub,
> >but I guess it could be 700.
>
> Of course it could be 700, there are zillions of threaded 700c wheels out there, they came on
> almost all new road bikes until the late
> 1980s.
>
> > At this point in the space time contiuium, I'd think that most threaded hubs are laced to 27
> > INCH wheels.
>
> Don't agree with that guess.
>
> > If so, this wheel is not going to fit on a modern bike as the brakes will be incorrectly
located
> >to the rim.
> >
> >If it's the first question, how about the spacing on the back of the
frame?
> >There a jump between 7sp and 9 sp and if the frame is steel, you can
probably
> >stretch it. And if was a 7 sp bike, I bet it's steel.
>
> More likely steel but there are 7-speed aluminum bikes aplenty, Trek, Klein, Cannondale, etc.
>
> The solution for the original poster is to rebuild the wheel with a cassette hub for 9s (and
> respace the frame if necessary) or get 8s shifters to use on a 7s freewheel.
>
> It would be interesting if someone made a 7s or 8s freewheel with 9s spacing, that would be a
> useful repair product that would allow people on 126mm spaced aluminum bikes to buy current
> shifters.
>
> --Paul
The market for such a freewheel would be so limited that it would probably be a waste of time. Those
that are still riding 7sp probably wouldn't spend the $$ to upgrade to the new shifters, either out
of "retro-grouchiness" or just don't see the need.
Mike