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My Rohloff gearhub will only shift between gears 3 and 4 (I think; display long ceased to be readable, but it's two low gears). I tried adjusting the shifter cable tension but it makes no difference. When I disconnect the gearbox from the hub it still doesn't shift.

gearbox

The owner's manual troubleshooting section has an item "twist shifter does not turn freely", but beyond 3 and 4, my twist shifter does not turn at all, not even under considerable force. When I do shift (heavily) between 3 and 4, I do see a slight movement in the cables. I am not able to manually pull the cables out of the gearbox.

Until yesterday, shifting worked through all gears albeit somewhat heavily. I took the bicycle on a train, where I strapped it. After I got off the train, the problem appeared.

What might cause this?

  • I would say something's jammed. – Daniel R Hicks Feb 21 '17 at 12:36
  • @DanielRHicks Possibly. It was dirty but cleaning didn't solve it. I'm hesitant to open it for fear of breaking things. – gerrit Feb 21 '17 at 13:17
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    Rohloff famously has a great warranty. Take it to a dealer. – RoboKaren Feb 21 '17 at 17:17
  • @RoboKaren Apparently, warranty is two years. My Speedhub is almost 8 years old (bought in spring 2009). Warranty also requires a yearly service check (...) by a professional bike workshop, which I didn't have since between 2009 and 2014 I lived 1600 km from the nearest Rohloff-capable bike shop, so I had to maintain my bike myself. Shifter cables are even listed as a wearable part and I'm still using the original ones, despite a traffic accident in November 2013. I can't see anything wrong but it would be unsurprising if they need replacing. – gerrit Feb 21 '17 at 17:53
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Check the cables.

Rohloff classifies the gear shifter cables as a consumable. They may wear out and need replacement over the years. Check the gear shifter cables carefully for any damage; they might need replacement. Be aware that they are not ordinary cables, but that you need special Rohloff gear cables to fit.

In my case, there was a damage in the gear shifter cables. Replacement resolved the problem.

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