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Alles über Umwerfer: Unterschied zwischen den Versionen
Alles über Umwerfer (Quelltext anzeigen)
Version vom 17. September 2018, 08:37 Uhr
, 17. September 2018→Zugverlauf: Übersetzungsanfang
(→Montage: Kettenneigung .. nicht ..winkel) |
(→Zugverlauf: Übersetzungsanfang) |
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===Zugverlauf=== | ===Zugverlauf=== | ||
* Klassische Umwerfer sind [[Bottom Pull]] Modelle, bei denen der [[Schaltzug]] von unten um das Tretlagergehäuse herum an den Umwerfer geführt wird. | |||
* [[Top Pull]] Umwerfer werden durch einem von oben heran geführten Schaltzug angesteuert. Dieser Typ ist an Mountainbikes mit der Absicht verbaut, den Schaltzug gegen Schmutz, der durch das Vorderrad gegen das [[Unterrohr]] aufgewirbelt wird, zu schützen. | |||
* Some older designs use a loop of cable housing running from a stop near the bottom of the down tube. This design hasn't been used since the mid-1970s. Fortunately, it isn't difficult to work around this. If you want to mount a modern derailer on a bike intended for this type of mount, just ignore the housing stop near the bottom of the down tube. Run the bare cable under the bottom bracket and up to the derailer's anchor bolt.<br> If you are worried about protecting the paint under the bottom bracket, there are two easy ways to protect it. | * Some older designs use a loop of cable housing running from a stop near the bottom of the down tube. This design hasn't been used since the mid-1970s. Fortunately, it isn't difficult to work around this. If you want to mount a modern derailer on a bike intended for this type of mount, just ignore the housing stop near the bottom of the down tube. Run the bare cable under the bottom bracket and up to the derailer's anchor bolt.<br> If you are worried about protecting the paint under the bottom bracket, there are two easy ways to protect it. | ||
** Easiest is to use a short length of "floating" housing, a piece of housing perhaps 2-3 inches (50-75 mm) long under the bottom bracket. This does not need housing stops at either end. The tension on the cable will make it stay in place. | ** Easiest is to use a short length of "floating" housing, a piece of housing perhaps 2-3 inches (50-75 mm) long under the bottom bracket. This does not need housing stops at either end. The tension on the cable will make it stay in place. | ||