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"Rough up" chromed dropouts?
My Specialized Sequoia has chromed rear horizontal dropouts.
If I'm climbing and really putting power into the pedals, the rear axle almost always slips a little in the dropouts; in severe cases, this causes tire rub on the chainstay. I'm already using a campagnolo rear skewer, cranked really tight. I'm thinking of taking a barrel sander to the hardened chrome surface to rough it up a bit and give the skewer and axle end cap faces something to bite into. Thoughts?
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http://less-than-epic.blogspot.com/ |
#2
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Maybe before that try some carbon paste?
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#3
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What do the hub locknuts look like? Smooth or serrated?
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#4
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I had this problem regularly with chromed dropouts on a Colnago Master. The solve was a) a White Industries T11 hub, which has knurled endcaps b) As much QR force as I could stand to apply, using an enclosed cam QR (Shimano Dura-Ace in this case).
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#5
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Addressed that issue on a Waterford with Paul components QR skewers. Hard to put a price on the peace of mind they provided.
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#6
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What model of Campagnolo skewer?
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#7
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The current version that come with boras, etc.
__________________
http://less-than-epic.blogspot.com/ |
#8
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Quote:
I wonder how much you'd gain by sanding and if you wouldn't be better off doing a bit of "knurling" with a punch? I'd probably try DT swiss skewers before anything else though. |
#9
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[IMG][/IMG]
See how those serrations are Aluminum? Most Dura Ace skewers (most, because I don't know if it's still the current design) have that made from steel. Try a wheel/hub where the serrated cap is steel (and serrated) plus a skewer nut that's got steel serrations. That will probably be adequate, assuming you stick with an internal cam QR. |
#10
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I think those are external cam You need internal.
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#11
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Yea, look at the axle end cap.
__________________
You always have a plan on the bus... |
#12
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I thought they might be the ones….Is the knurling done directly in the aluminum or is there a steel insert?
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#13
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I think you guys are onto something, I bet those QR faces are alloy for weight savings. Will dig through my parts bin to see what esle is in there with steel faces.
Thanks. Will report back
__________________
http://less-than-epic.blogspot.com/ |
#14
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I have the same issue with the stainless dropouts on my waterford-made paramount; i tried every skewer under the sun (and did the "so tight you see the imprint in your palm trick") and it still slipped under heavy efforts. I ended up getting a Surly Hurdy Gurdy and that solved it. It's a bit of a pain taking the wheel out now, but at least I don't have to worry about burning out any more tires and/or paint.
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#15
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The skewers pictured are internal.
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