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Laufradbau: Unterschied zwischen den Versionen

2.918 Bytes hinzugefügt ,  28. April 2008
K (→‎Unterschiedliche Speichen-/Kreuzunsgmuster: Formatierung des Beispiels)
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Bei allen Kreuzungsmustern ist nur die äußerst liegene Kreuzung '''''interlaced''''', sodass die Speichen hinmtereinander liegen.
Bei allen Kreuzungsmustern ist nur die äußerst liegene Kreuzung '''''interlaced''''', sodass die Speichen hinmtereinander liegen.
== Die ''Schlüsselspeiche'' ==
Die erste zu befestigene Speiche nennt man die ''Schlüsselspeiche''.
This spoke must be in the right place or the valve hole will be in the wrong place, and the drilling of the rim may not match the angles of the spokes. The key spoke will be a trailing spoke, freewheel side. It is easiest to start with the trailing spokes, because they are the ones that run along the inside flanges of the hub. If you start with the leading spokes, it will be more awkward to install the trailing spokes because the leading spokes will be in the way.
Since the key spoke is a trailing spoke, it should run along the inside of the flange. The head of the spoke will be on the outside of the flange. (see sidebar "Which side of the flange?")
It is customary to orient the rim so that the label is readable from the bicycle's right side. If the hub has a label running along the barrel, it should be located so that it can be read through the valve hole. These things will not affect the performance of the wheel, but good wheelbuilders pay attention to these things as a matter of pride and esthetics.
Rims are drilled either "right handed" or "left handed". This has to do with the relationship between the valve hole and the spoke holes. The spoke holes do not run down the middle of the rim, but are offset alternately from side to side. The holes on the left side of the rim are for spokes that run to the left flange of the hub. with some rims the spoke hole just forward of the valve hole is offset to the left, with others it is offset to the right (as illustrated). Which type is "right handed" and which "left handed"? I have never met anyone who was willing to even make a guess!
The key spoke will be next to or one hole away from the valve hole in the rim.
As viewed from the right (freewheel) side of the hub, the key spoke will run counterclockwise, and it will go to either the hole just to the right of the valve hole (as illustrated) or the second hole to the right, depending on how the rim is drilled. The aim is to make the four spokes closest to the valve hole all angle away from the valve, giving easier access to the valve for inflation.
Screw a nipple a couple of turns onto the key spoke to hold it in place. Next, put another spoke through the hub two holes away from the key spoke, so that there is one empty hole between them on the hub flange. This spoke goes through the rim 4 holes away from the key spoke, with 3 empty holes in between, not counting the valve hole.
Continue around the wheel until all 9 of the first group of spokes are in place. Double check that the spacing is even both on the hub (every other hole should be empty) and the rim (you should have a spoke, 3 empty holes, a spoke, etc. all the way around. Make sure that the spokes are going through the holes on the same side of the rim as the flange of the hub. It should look like this:


== Quellen ==
== Quellen ==
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