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Salsa Chili Con Crosso Scandium - Dented Top Tube

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Salsa Chili Con Crosso Scandium - Dented Top Tube

Old 06-10-21, 02:27 PM
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ifixbikes
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Salsa Chili Con Crosso Scandium - Dented Top Tube

Just like the title says... the frame will get built for resale. Currently asking $150 CAD ($115 USD?).

Is it still usable? I know little about Scandium but I know I can't re-bend re-shape alloy. Just a note... The frame itself was constructed with a "Specially shaped top tube designed for shouldering the bike..."

Any thoughts?



F&F.

The TT dent.
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Old 06-10-21, 02:44 PM
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dsbrantjr
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"Scandium" bike frames are basically 7075-type aluminum alloy with about 2% scandium in the alloy.
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Old 06-10-21, 04:08 PM
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Originally Posted by dsbrantjr View Post
"Scandium" bike frames are basically 7075-type aluminum alloy with about 2% scandium in the alloy.
So, therefore, I can't frame block roll it out.
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Old 06-11-21, 11:26 AM
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shelbyfv 
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That's a crease, as opposed to a rounded dent. Supposedly more likely to compromise an aluminum frame.
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Old 06-11-21, 11:56 AM
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That's bad. I wouldn't.
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Old 06-11-21, 01:48 PM
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Not sure frame blocks would even fit as tubing is tapered. If it were my bike I would ride it, but probably not
cross use or trails nor do any high speed downhill road bombings, but for casual or group riding it will
'probably' last years. YMMV. If it does fail, and it likely will someday, the failure will telegraph itself by
the loss of rigidity. As soon as the crease becomes a crack the tube will rapidly separate into two pieces.
At that point you gingerly ride home and strip the frame and trash it. If you sell it hope you don't know the
buyer who hopefully lives far away and has no way to ID you post sale.
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Old 06-11-21, 02:48 PM
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Thank you all for valuable input... And so I'll pass.
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Old 06-11-21, 03:42 PM
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ifixbikes,
My experience with scandium alloys are in the golf shaft industry where the tubes were developed as a mix of steel and scandium that is about 15% lighter and equally as strong as an all steel tube. The tubes are a bit more brittle and will shear about the same as ultra-lightweight steel alloy. Most of those shafts were designed to use the same mix that was used by the Russian military for missile tubes. The tubes are about 50% higher in cost than lightweight steel alloys and because of that they did not sell very well. Just my experience with scandium. Smiles, MH
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