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Campy mystery tool... What is this thing???

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Campy mystery tool... What is this thing???

Old 12-04-19, 01:05 PM
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La Brea Bike 
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Campy mystery tool... What is this thing???

Frame building, I assume?
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Old 12-04-19, 01:11 PM
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Somebody having fun?

It doesn't appear to me to have any specific use with bicycles, but I do wonder if somebody built it as a custom wrench for something, possibly not even bike related.

Chainwhip? Still, it would need to be anchored.
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Old 12-04-19, 01:25 PM
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Yeah, looks like someone just made a toy with left over parts. It's just a set of Campy dropouts hooked together with a bit of spare chain. I suppose they could be a set of 9 mm and 10 mm open end wrenches with no handles for leverage.
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Old 12-04-19, 01:26 PM
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Apparently multiple of these were found in the Campy toolbox...
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Old 12-04-19, 01:42 PM
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Anybody know when Campagnolo started stamping their chain plates?

The rear dropout appears to have been clamped by a skewer multiple times, but I don't see any signs of brazing.

Perhaps this was used to apply tension to the cones while adjusting.
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Old 12-04-19, 02:02 PM
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Originally Posted by CliffordK View Post
Anybody know when Campagnolo started stamping their chain plates?
Those look to me like SedisSport chain links.

The rear dropout appears to have been clamped by a skewer multiple times, but I don't see any signs of brazing.
Perhaps this was used to apply tension to the cones while adjusting.
The black oxide would have been dissolved by the brazing flux had they ever been brazed. I thought the same about them being used for cone adjustment. The OP states there were many of them in a box. I wonder if there were similar left-side pieces chained together.

In any case, it's home-made, not a Campagnolo factory tool.
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Old 12-04-19, 02:16 PM
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This was purchased in a lot with a frame jig as well... Dunno...
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Old 12-04-19, 02:26 PM
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Originally Posted by La Brea Bike View Post
This was purchased in a lot with a frame jig as well... Dunno...
If it is homebuilt, there may not be an easy answer.

One could use it to protect dropouts from a knurled skewer during building, but then why not just find non-knurled skewer

I'm leaning towards a spacer for cone adjustment. But, you could try the Frame Builder's subforum if you think it has to do with frame building.
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Old 12-04-19, 03:21 PM
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small, compact martial arts nun-chucks that you can take on tour?
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Old 12-04-19, 03:56 PM
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My guess - used in pairs to be clamped with the QR when adjusting the cones. Adjust cone, tighten QR, feel axle, repeat. No bike required. Takes up little space in a toolbox. There might even be a creative way to hang the other dropouts on the wheel so the ones being used stay in place while wrenching the cones. (Stick through the spokes?)

Ben
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Old 12-04-19, 10:57 PM
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IIRC: used by the mechanic in the support car to pre-adjust the QR on the spare wheels. This speeds wheel changes by not having to check the adjustment on the QR after a wheel swap: rider flats, removes wheel, mechanic installs spare wheel and clamps down on re-adjusted QR, rider sprints away.
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Old 12-04-19, 11:27 PM
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Originally Posted by Jeff Wills View Post
IIRC: used by the mechanic in the support car to pre-adjust the QR on the spare wheels. This speeds wheel changes by not having to check the adjustment on the QR after a wheel swap: rider flats, removes wheel, mechanic installs spare wheel and clamps down on re-adjusted QR, rider sprints away.
Ah, that makes a lot of sense!!!
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Old 12-05-19, 12:36 AM
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Originally Posted by Jeff Wills View Post
IIRC: used by the mechanic in the support car to pre-adjust the QR on the spare wheels. This speeds wheel changes by not having to check the adjustment on the QR after a wheel swap: rider flats, removes wheel, mechanic installs spare wheel and clamps down on re-adjusted QR, rider sprints away.
Time to add Lawyer Lips and Locking Washers.
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Old 12-05-19, 07:28 AM
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Originally Posted by Jeff Wills View Post
IIRC: used by the mechanic in the support car to pre-adjust the QR on the spare wheels. This speeds wheel changes by not having to check the adjustment on the QR after a wheel swap: rider flats, removes wheel, mechanic installs spare wheel and clamps down on re-adjusted QR, rider sprints away.
neat idea (if true) that makes sense

although IB Roots answer gets points for funny.....and the associated visuals.
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Old 12-05-19, 08:04 AM
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Originally Posted by CliffordK View Post
I'm leaning towards a spacer for cone adjustment. But, you could try the Frame Builder's subforum if you think it has to do with frame building.
I think you are right. Campy hubs, at least my 2006 vintage Chorus hubs and other similar models, allow for hub final adjustment with the wheel clamped in the dropouts. Perhaps two of these were used by mechanics to adjust the hubs with out having the actual bike.
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Old 12-05-19, 12:26 PM
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Originally Posted by Jeff Wills View Post
IIRC: used by the mechanic in the support car to pre-adjust the QR on the spare wheels.
Makes sense... but wouldn't you need two of them? I guess he said there were more than one...
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Old 12-05-19, 01:36 PM
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Originally Posted by sweeks View Post
Makes sense... but wouldn't you need two of them? I guess he said there were more than one...
Front wheel and rear wheel.
And, probably yes, 2 or 3... plus a few spares for the ones that get lost. The two sides would need to be rather independent, although perhaps could be tied together with a piece of string.
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Old 12-05-19, 01:51 PM
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Originally Posted by CliffordK View Post
Front wheel and rear wheel.
And, probably yes, 2 or 3... plus a few spares for the ones that get lost. The two sides would need to be rather independent, although perhaps could be tied together with a piece of string.
so why would it be attached with a chain then?
this may be a support car tool but how is this practical?
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Old 12-05-19, 03:27 PM
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Originally Posted by justinschulz9 View Post
so why would it be attached with a chain then?
this may be a support car tool but how is this practical?
Are the front and rear dropouts different enough to want to have a different dropout for the front vs rear?

If I was doing it, probably 1 tool for all.

The chain would be a fun way to connect it all together, and would reduce tangles of having multiple strings or cables.
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Old 12-05-19, 03:30 PM
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It's obviously a dropout tension whip adjuster.
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Old 12-05-19, 04:48 PM
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Originally Posted by CliffordK View Post
Front wheel and rear wheel.
I meant you'd need two of each so you could adjust the QR... there are, after all, two dropouts at each end of the bike.
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Old 12-05-19, 08:03 PM
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Originally Posted by HillRider View Post
I think you are right. Campy hubs, at least my 2006 vintage Chorus hubs and other similar models, allow for hub final adjustment with the wheel clamped in the dropouts. Perhaps two of these were used by mechanics to adjust the hubs with out having the actual bike.
That was a recent change for Record/Chorus rear hubs in 1999 and fronts 2000 when they upgraded from standard 10mm and 9mm steel to larger aluminum axles.

1999 Record front hubs used a unique adjustable preload cartridge bearing.
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Old 12-05-19, 08:06 PM
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Originally Posted by CliffordK View Post
Are the front and rear dropouts different enough to want to have a different dropout for the front vs rear?
Yes. Front axles are 9mm, rear 10mm. Dropout thickness can vary too.
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Old 12-05-19, 08:17 PM
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Old 12-05-19, 11:07 PM
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Originally Posted by justinschulz9 View Post
so why would it be attached with a chain then?
this may be a support car tool but how is this practical?
I see a front dropout attached to a rear dropout. You would have two of these setups and use them to adjust the tension on the QR's while you're just riding along or while caring for spare parts between stages. A couple of these beats carting a frame & fork around just to check the QR's. Having the two dropouts chained together beats having a bunch of loose dropouts sitting around, waiting for one to get lost.
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