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Old 06-17-12, 07:10 PM   #1
goatalope
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Install aluminum wedge on aluminum quill stem?

Traditional aluminum road quill stems always seem to have steel wedges. Cromo mountain quill stems seem to have aluminum wedges. Can I take the aluminum wedge and install it on the aluminum road stem? Would it be a safety issue?
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Old 06-17-12, 07:19 PM   #2
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Traditional aluminum road quill stems always seem to have steel wedges. Cromo mountain quill stems seem to have aluminum wedges. Can I take the aluminum wedge and install it on the aluminum road stem? Would it be a safety issue?
As long as the OD and angle of the cut match it should be fine.

For what it is worth, my cyclocross bike has a deda murex stem (alloy stem, alloy wedge, alloy bolt) and I ride it off road.
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Old 06-18-12, 07:21 AM   #3
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I don't know for certain, but I'd guess it has do with the parts binding as much as anything else. I think if using aluminum on aluminum, it's a good idea to use some kind of anti-seize compound. Other than that I don't see any issues.
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Old 06-18-12, 09:17 AM   #4
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I don't know for certain, but I'd guess it has do with the parts binding as much as anything else. I think if using aluminum on aluminum, it's a good idea to use some kind of anti-seize compound. Other than that I don't see any issues.
Deda reccomends grease to keep their all alloy quill stem from binding.
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Old 06-18-12, 01:44 PM   #5
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There are aluminum wedges, thread match with the bolt is an issue.

my Cinelli 1R has a conic wedge it uses an aluminum bolt.. not too tight !
you dont have to get a lot of friction in the steerer to steer the bike..
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Old 06-18-12, 02:46 PM   #6
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As long as the OD and angle of the cut match it should be fine..
And there are lots of variations out there! I've never been able to mix'n match,
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Old 06-18-12, 03:12 PM   #7
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Re post no. 5: I recall from the olden days, Cinelli intended the 1R aluminum stem bolt to be installed only after you use a steel bolt to secure the stem safely. That is, crank down with steel bolt, remove steel bolt, install aluminum bolt with only enough torque to ensure that the conical wedge won't loosen.
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