|how tight is too tight for skewers||john de|
Mar 28, 2001 5:10 PM
|my front one creaks and my back one the wheel will move out of alignment if i dont really crank them down ....but i dont want to risk them blowing..kyserium skewers on a trek..i dont want to get new skewers unless i have to..|
|Tight enough to keep'em from||look271|
Mar 28, 2001 6:03 PM
|Flying off your roofrack in the middle of the night in the middle of God-knows-where! (Don't ask!) Seriously, though, I've been told that nothing more than a firm push should be all that is needed to tighten them. Any more than that is excessive.|
|Tight enough to keep'em from||Adamz|
Mar 28, 2001 8:13 PM
|Yeah, make sure you tighten them down well on your roof racks. I had one come off on the freeway going 75mph. Man did that thing bounce high. Luckily I was able to get it back without any damage.|
|re: how tight is too tight for skewers||Breck|
Mar 28, 2001 8:27 PM
|Just my take ... Have steel Dura-Ace QR's binding the Ultegra hubs on the road OCLV; Ringle Ti twisters for the Klein MTB with White hubs. Neither creak but the twisters are easier to cinch as you get them fairly tight and twist them snug. This twist idea can be used on regular QR's also but is trickier to get the lever closed and cinched where you want it, i.e., close to the front fork blade or rear chain stay. |
Typically QR's have a cam action that has the most resistance in the middle of the closing. Before cinching ensure the wheel is in a neutral position by releasing the skewer while the bike is on the ground. If you are right handed, take the lever side of the QR with your right hand and the nut side with your left. The idea is to get the lever cam side to close under moderate pressure but not so much that it is difficult to open. By alternately testing the lever tension with the right hand while screwing the nut a bit tighter or looser with the left hand, get the lever to close with "moderate" pressure. This is the trick and takes practice. In time you will be a pro at it.
|re: how tight is too tight for skewers||john de|
Mar 29, 2001 11:09 AM
|i hope to become a pro at it soon ...ill keep practicing...|
|Effect on wheel bearings.||Ping Pong|
Mar 29, 2001 12:08 AM
|Ideally you would also consider the effect of the tightness of the skewers compressing the wheel bearing.
I generally leave my wheel bearings slightly loose, giving a very slight movement at the rim and then erradicate this looseness with the skewer. It is surprising how much difference the skewer makes on the bearings without even having to put it on tight.
|I call BS!||grz mnky|
Mar 29, 2001 1:42 PM
|If your cones are properly tightened then this won't happen. How much force do you think you apply with a couple wimpy skewwers vs. what you can accomplish with a couple of cone wrenches. Ans.: Not much. If your hub setup is this cheesey then you should be thinking about new wheels. Don't give me the axle lengthening and contracting bit - you couldn't adjust things to this level of precision by hand. |
If you're running Mavic wheels (or similar cartridge bearing designs) then this won't happen ever by virtue of the design.
BTW - it is also surprising how much control is lost when your wheels have the ability to move around while under cornering loads.
|I call BS!||john de|
Mar 29, 2001 2:40 PM
|im just going to put my old skewers on...i cant figure out why they move the drop out and there doesnt seem to be anything i can do about it..|
|I'm with grz||Kerry Irons|
Mar 29, 2001 3:50 PM
|I've tried this on three generations of Campy hubs and do not see but a tiny change in bearing adjustment due to skewer pressure. I actually did some experiments on this once and found that the pressure from your skewers was equal to 1/36th of a turn of the hub cone - so small you would never adjust a hub this closely in normal procedures. I've not run the experiment with Shimano hubs, so maybe they have flimsy axles and skewer pressure really does make a difference. Not for the last 30 years of Campy hubs.|
|Try these :||Ping Pong|
Mar 29, 2001 11:30 PM
|I must admit that I am not really familiar with top end components but try it with 105 or Ultegra hubs. The cones are certainly well secured on the axle before this procedure, It does take a bit of hit and miss adjustment to get the play down to the level that is erradicated by the skewer. Once tightened there is no play at all.
The wheels then run beautifully, especially during heavy cornering.
|Effect on wheel bearings.||bruceg|
Mar 29, 2001 3:29 PM
|You're absolutely right Ping Pong. When the bearing clearance is adjusted correctly, there is a slight play at the rim with the QR lever halfway open and no play when the lever is closed. John Barnett teaches a beautiful method for adjusting the bearings with this kind of precision. I was a skeptic until I tried it on some new Ultegra hubs - wouldn't go back to the old way now.|| |