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-   -   Skewers working themselves loose: How do you fix it? (https://www.bikeforums.net/road-cycling/1094917-skewers-working-themselves-loose-how-do-you-fix.html)

FlashBazbo 01-15-17 07:43 PM

Skewers working themselves loose: How do you fix it?
 
In decades of riding, I've never had this problem. Now, I find that both my month-old titanium skewers work themselves loose during a ride. They don't open -- the tension knob seems to back off. Last week, the rear skewer backed off just enough to create a creak. Just a nuisance. But this weekend, after 100 miles, the front skewer had lost enough tension that my front wheel was oscillating in the dropouts at speed. It sounded as if the road had tiny, uniform grooves cut across it. The wheel didn't fall out of the dropouts and I wasn't close to losing control, but the wheel was very loose.


How do you fix this problem? I COULD drag my old Mavic QR's out of my wheel bag, but would rather fix these, if I can.

Sy Reene 01-15-17 07:51 PM

Have you perhaps tried just swapping out for now the tension knobs from the mavics onto your Ti skewers? Sounds like a faulty design.. what kind did you get?

FlashBazbo 01-15-17 08:02 PM

They are ENVE Ti skewers.

rubiksoval 01-15-17 08:25 PM


Originally Posted by FlashBazbo (Post 19315271)


How do you fix this problem? I COULD drag my old Mavic QR's out of my wheel bag, but would rather fix these, if I can.

I wouldn't ride those skewers.

exmechanic89 01-15-17 08:44 PM

I 'd definitely figure it out before I rode with them again, that's pretty scary.

FlashBazbo 01-15-17 08:51 PM


Originally Posted by rubiksoval (Post 19315350)
I wouldn't ride those skewers.



Yeah, the Mavic QRs have been installed in their place. Maybe ENVE will have a remedy. Until then, the Mavics.

rpenmanparker 01-16-17 07:19 AM

Maybe not, but most likely you have been riding internal cam skewers like Shimanos and Campagnolos until now...and the Mavics. They have a much stronger grip than external cam skewers like the light weight models even big name ones like Enve. It is just the inferior design. You have to put a lot more force into the clamping in order to get the same grip on the dropouts. Also check that the threads on your skewer rod and nut are deep enough to hold under high tension. You may have just bought a crappy pair. Most people can get external cam skewers to do the job, but every now and then someone just can't make them work, especially on horizontal dropouts. External cam skewers were never intended for anything but vertical dropouts.

indyfabz 01-16-17 07:38 AM

Do ti skewers stretch?

gregf83 01-16-17 07:52 AM


Originally Posted by FlashBazbo (Post 19315271)
In decades of riding, I've never had this problem. Now, I find that both my month-old titanium skewers work themselves loose during a ride. They don't open -- the tension knob seems to back off. Last week, the rear skewer backed off just enough to create a creak. Just a nuisance. But this weekend, after 100 miles, the front skewer had lost enough tension that my front wheel was oscillating in the dropouts at speed. It sounded as if the road had tiny, uniform grooves cut across it. The wheel didn't fall out of the dropouts and I wasn't close to losing control, but the wheel was very loose.


How do you fix this problem? I COULD drag my old Mavic QR's out of my wheel bag, but would rather fix these, if I can.

If it's an external cam skewer, I make sure it's clean and add a little wax on the cam portion. This makes it easier to tighten with higher pressure.

exmechanic89 01-16-17 08:04 AM


Originally Posted by rpenmanparker (Post 19315829)
Maybe not, but most likely you have been riding internal cam skewers like Shimanos and Campagnolos until now...and the Mavics. They have a much stronger grip than external cam skewers like the light weight models even big name ones like Enve. It is just the inferior design. You have to put a lot more force into the clamping in order to get the same grip on the dropouts. Also check that the threads on your skewer rod and nut are deep enough to hold under high tension. You may have just bought a crappy pair. Most people can get external cam skewers to do the job, but every now and then someone just can't make them work, especially on horizontal dropouts. External cam skewers were never intended for anything but vertical dropouts.

^This was my initial thought as well - external cam skewers. They sure are a terrible design, and seem to be everywhere now, and I could see a Ti version being even less reliable than a steel version. I have them (steel versions) for the first time on a newer bike I put together and I dont have a lot of confidence in them.

FlashBazbo 01-16-17 08:53 AM

Yes, they are external cam. And there's not really much "cam" to them. Very subtle. Very little "over center" feel to the lever travel. But, at any rate, it's not the lever side that's the problem. The levers are staying in the closed position and are staying in the same orientation as when I close them. Even the very loose front skewer was still closed with the handle pointing at 3 o'clock when I checked it.

[I'm not sure where the idea came in that these are horizontal dropouts. They're not. Is there even such thing as horizontal FRONT dropouts?]

mvnsnd 01-16-17 10:01 AM


Originally Posted by indyfabz (Post 19315855)
Do ti skewers stretch?

Of course they can. If the loading is high enough. I don't know how tight one would have to make them, but this is what I thought first too.

But as Rpen points out one does need more force on this style. The levers should not be easy to close or open. Also I would mark the skewer nut to absolutely make sure its not really rotating.

CliffordK 01-16-17 10:16 AM

Can you mark the nut to verify whether or not it is turning?

I think one of the issues with the external cam skewers is the plastic washer compresses to take up tension.

I've got them on one bike, and try to get them quite TIGHT. Essentially as tight as I can get them.

JReade 01-16-17 10:21 AM


Originally Posted by FlashBazbo (Post 19315965)
Is there even such thing as horizontal FRONT dropouts?

Yeah, forward facing. I think MTB shocks had them during the transition to disc as an insurance policy for the braking pulling the wheel out.

FlashBazbo 01-16-17 11:11 AM


Originally Posted by mvnsnd (Post 19316065)
I would mark the skewer nut to absolutely make sure its not really rotating.

I think the time is past for that. Knowing that they loosen on their own, do you really want to give them a second shot at you?

Sounds like an I.Q. test to me.

fietsbob 01-16-17 11:18 AM

Ti proving to be too elastic, get steel skewers.

the stretching and relaxing of that tension lets the end unscrew a little at a time..





...

mpath 01-16-17 11:31 AM

I have Enve Ti skewers and they've worked flawlessly and without issue. If the above remedies doesn't work, maybe a bad pair. Can you contact Enve for a replacement?

Homebrew01 01-16-17 11:38 AM

Skewers are not a place to skimp on weight/strength, IMO

datlas 01-16-17 11:44 AM


Originally Posted by indyfabz (Post 19315855)
Do ti skewers stretch?

I don't know but I bet the carbon ones asplode.

indyfabz 01-16-17 11:51 AM


Originally Posted by datlas (Post 19316273)
I don't know but I bet the carbon ones asplode.

What is life span of a carbon skewer?

bmthom.gis 01-16-17 11:52 AM

I'd contact ENVE and see what they say. Maybe you'll get a replacement set! Or it's just as likely they will say there is nothing they can do for you. At least you have some backup skewers

FlashBazbo 01-16-17 11:52 AM


Originally Posted by mpath (Post 19316238)
I have Enve Ti skewers and they've worked flawlessly and without issue. If the above remedies doesn't work, maybe a bad pair. Can you contact Enve for a replacement?

Yes. Awesome customer service from ENVE. I didn't expect my email to be read until tomorrow, but they've already responded and are shipping a new pair.

Incidentally, I didn't ask for a new pair. I just asked for advice on what to do about these. Their first response was to go the whole mile.

mpath 01-16-17 11:53 AM

Awesome!

FlashBazbo 01-16-17 11:56 AM


Originally Posted by mpath (Post 19316238)
I have Enve Ti skewers and they've worked flawlessly and without issue. If the above remedies doesn't work, maybe a bad pair. Can you contact Enve for a replacement?

How tight do you adjust them? Can you really "lean" on them without worrying about it?

(At some point, even if the skewer is strong, I worry about the effects on the wheel hub, fork or frame. I've flexed a titanium frame -- using thru axles -- enough to pull the brake disk out of alignment. It's possible to get things too tight.)

datlas 01-16-17 12:00 PM


Originally Posted by indyfabz (Post 19316294)
What is life span of a carbon skewer?

Good question that may deserve a thread of its own. :innocent:


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