De 'b' staat dus gewoon voor 'b'Modern derailers have two spring-loaded pivots. The lower pivot, sometimes called the "a pivot" winds the cage up to take up slack as you go to smaller sprockets. The upper "b pivot" adds additional slack take-up ability by pushing the derailer's parallelogram backwards.
The tension of the two springs needs to be balanced for best shifting.
Most derailers have an angle adjustment screw (Shimano calls it "B-tension adjustment"). This adjusts the tension of the upper ("b") spring of the parallelogram, and thus the height of the jockey pulley. The looser this screw is, the closer the jockey pulley will be to the cluster.
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- vibemaker
- Elite Mountainbiker
- Berichten: 2038
- Lid geworden op: zo 18 augustus 2013, 10:32
- Contacteer:
https://www.sheldonbrown.com/derailer-adjustment.html
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