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Shimano Drei-Gang-Naben: Unterschied zwischen den Versionen

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|colspan=2 align=center| 0,733
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|colspan=2  align=center|1,000
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Bicycle manufacturers often assume that the middle gear of a 3-speed hub is the "normal" gear. They fudge a bit, lowering the gears in order to keep the top gear from being completely useless, but then the middle gear is too low for level-ground riding. A 3-speed hub will work better for you if you change the sprocket or chainwheel to lower all the gears, so you use the top gear on level terrain. The low and middle gears are then better for acceleration and climbing, too. See the article on internal-gear hubs for detailed advice.
Fahrradhersteller nehme oft an, dass der mittlere Gang einer Dreigang-Nabe der "[[normal]]e" Gang ist. Sie schummeln ein wenig und kombinieren eine niederigere Übersetzung, damit der höchste Gang nicht völlig nutzlos wird. dann ist jedoch der mittlere Gang im Flachen nicht wirklich zu gebrauchen. Eine Dreigang-Nabe funktioniert besser, wenn man [[Ritzel]] oder [[Kettenblatt]] tauscht und alle Übersetzungen heruntersetzt. Dann funktioniert der höchste Gang im Flachen hervorragend und man hat den kleinsten und mittleren Gang für Beschleunigung und Bergauffahrten zur Verfügung. Dazu kann man mehr im Artikel [[Alles_über_Nabenschaltungen#Ritzel_und_Kettenbl.C3.A4tter_ausw.C3.A4hlen|Alles über Nabenschaltungen]] nachlesen.


Various Nexus 3-speed models have overlocknut dimensions between 127 and 135 mm. These are listed for most hubs in the hub dimensions document linked below. It is usually possible to spread the rear triangle of a steel (Cromoly) frame to the needed width. Any good bicycle mechanic will be able to do this, or you can do it yourself. Most Shimano 3-speeds use a bellcrank and pushrod for shifting, rather than a pulley concentric with the axle. With these hubs, the orientation of the axle does not affect shifting, and oil lubrication is possible by removing the bellcrank and pushrod, then squirting oil into the hollow end of the axle.
Various Nexus 3-speed models have overlocknut dimensions between 127 and 135 mm. These are listed for most hubs in the hub dimensions document linked below. It is usually possible to spread the rear triangle of a steel (Cromoly) frame to the needed width. Any good bicycle mechanic will be able to do this, or you can do it yourself. Most Shimano 3-speeds use a bellcrank and pushrod for shifting, rather than a pulley concentric with the axle. With these hubs, the orientation of the axle does not affect shifting, and oil lubrication is possible by removing the bellcrank and pushrod, then squirting oil into the hollow end of the axle.
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