|Wheelsmith built Mavic Open-Pro's - they won't stay true!||yzfrr11|
Mar 29, 2002 6:04 PM
|I have about 2000 miles on a new set of Mavic Open-pro's with Campy Record hubs and 32 14/15 spokes built by Wheelsmith. I have to true them after every other ride. What gives? 185lbs, 6'0"|
Mar 29, 2002 6:24 PM
Excessive trueing after every other ride would do it.
If you have that much experience trueing you should probably just build your own. If you don't have that much experience trueing and do it that often then you probably buggered your wheels.
|re: Wheelsmith built Mavic Open-Pro's - they won't stay true!||Quack|
Mar 29, 2002 7:35 PM
|Don't sweat the fact that you've had trouble keeping them true. It's actually fairly easy to build strong wheels but it takes practice. First thing to do is to go around your rim and pluck the spokes and compare the tones. By the information you've given, you've most likely got drastically uneven spoke tension in your wheels. If your spokes have had excessive tweaks since they were built, the effectiveness of the spoke prep compound, if it was used, is probably nonexistent.
Uneven tension in the wheel combined with spoke nipples that don't resist twisting loose add up to one unreliable wheel. The best thing to do to make them rock solid again is to remove all of the spoke nipples, clean the spoke threads, reapply spoke prep or threadlocker, and slowly retension the wheel again making sure that it is round, true, and dished properly. Let the tone of the spokes be your guide when you are approaching final tension. If the tones sound the same around the wheel, chances are good that they won't change much in use. The wheels should then only require slight tweaks (1/2 turn or less) once or twice a year, depending on use or abuse.
There are a number of resources on the internet relating to wheel building that should provide tips on determining proper tension. Most people aren't willing to buy the tensiometer to actually measure it. Enjoy, riding a set of wheels that you've built is rewarding.
|re: Wheelsmith built Mavic Open-Pro's - they won't stay true!||pmf1|
Mar 29, 2002 7:37 PM
|I had this problem long ago with a set of O4CD rims and Ultegra hubs from Performance. The spokes kept getting loose after every ride. I bought new spokes and rebuilt them and off I went making my own wheels (I also bought the Jobst Brandt book).
The Performance wheels were machine built. I'd expect better from Wheelsmith (or so they claim). Give a call and nicely complain. If you have no luck, rebuild them and use some Spokeprep.
Nothing sucks more than having your wheels out of true all the damn time
|Typically insufficient/uneven tension (nm)||Kerry Irons|
Mar 29, 2002 8:02 PM
|I'm very surprised||Spoke Wrench|
Mar 30, 2002 7:07 AM
|The experience I've had with Wheelesmith built wheels has been excellent. When I had my own shop, they were practically the only wheels that I let go out without "touching up."
The amount of trouble you are having is intolerable. If they were my wheels, here's what I would do:
First, I'd loosen every single spoke until I could just see the first spoke thread. Then I would gradually build the tension back into the wheel. Tighten the nipples no more than 1/2 turn at a time and tighten them the same amount all around the wheel. I believe in using a tensiometer, but do the best you can with what you have. When you get ready to retrue the wheel, be sure to work with pairs of spokes.