"Rough up" chromed dropouts?

[AngryScientist]

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?

[fmradio516]

Maybe before that try some carbon paste?

[cmbicycles]

What do the hub locknuts look like? Smooth or serrated?

[EB]

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).

[yarbsr02]

Addressed that issue on a Waterford with Paul components QR skewers. Hard to put a price on the peace of mind they provided.

[El Chaba]

What model of Campagnolo skewer?

[AngryScientist]

Originally Posted by El Chaba

What model of Campagnolo skewer?

The current version that come with boras, etc.

[truth]

Originally Posted by AngryScientist

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?

I don't have any experience with modern campy skewers but have good experience with Shimano internal cam skewers. DT Swiss skewers seem to be able to give even more clamping force in my experience.

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.

[jds108]

[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.

[zmudshark]

Originally Posted by AngryScientist

The current version that come with boras, etc.

I think those are external cam You need internal.

[Hindmost]

Yea, look at the axle end cap.

[El Chaba]

I thought they might be the ones….Is the knurling done directly in the aluminum or is there a steel insert?

[AngryScientist]

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

[pnwgopher]

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.

[Nomadmax]

Originally Posted by zmudshark

I think those are external cam You need internal.

The skewers pictured are internal.