Thread: Shift Cable Adjuster Sensitivity
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Old 11-05-15, 08:45 AM
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Andrew R Stewart 
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Originally Posted by andr0id
They are almost 6x1mm or other close x1mm threads so 1 turn = 1mm of cable length adjustment.

You can get metric bolts in other thread counts (depending on the diameter) like .25, .50 and .75, but they are rare on bicycles.

See this article for the effect of a 1mm cable length change.

Art's Cyclery Blog » Science Behind the Magic | Drivetrain Compatibility
Actually Shimano and Campy adjuster threads are M5. 5mm diameter by 8 mm per thread. So one turn produces .8mm cable length change, whether done at either end of the cable. Some in line adjusters do use a M6 thread. Andy.
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