Adjust how? What exactly are you trying to achieve? And what do you mean by “gear”? Because you circled the dropouts rather than the actual cog.
Jurvooss on
Its an internal gear hub. You twist the mechanism on your bars and put or release tension on the circled part. Their are probably some indicator lines on the circled part to see if it’s aligned or not.
This is an internally-geared hub – it’s not a brand I immediately recognize but maybe Sachs? The cable binding bolt looks like Shimano though so I’m thoroughly in the weeds. You might be able to find the name of the manufacturer printed on the shifter itself.
Internally-geared hubs are adjusted purely through the cable tension. If you’re having trouble with feeling like the gears don’t “catch” when you shift, if nothing happens, or if the pedals spin without the hub engaging, then it does indeed need cable tension adjustment. Once you know the brand of the manufacturer, you’ll be able to find a tutorial on YouTube, but I would recommend taking this to a bike shop. If the hub itself has an issue preventing smooth and proper shifting, it’s a very involved process to rebuild (sometimes not possible and requires it to be replaced entirely).
4 Comments
Adjust how? What exactly are you trying to achieve? And what do you mean by “gear”? Because you circled the dropouts rather than the actual cog.
Its an internal gear hub. You twist the mechanism on your bars and put or release tension on the circled part. Their are probably some indicator lines on the circled part to see if it’s aligned or not.
That’s a hub gear, an easy explanation: https://youtu.be/mCwQFBVNoxw?si=Y_ZkLKykcyoEo3XK
This is an internally-geared hub – it’s not a brand I immediately recognize but maybe Sachs? The cable binding bolt looks like Shimano though so I’m thoroughly in the weeds. You might be able to find the name of the manufacturer printed on the shifter itself.
Internally-geared hubs are adjusted purely through the cable tension. If you’re having trouble with feeling like the gears don’t “catch” when you shift, if nothing happens, or if the pedals spin without the hub engaging, then it does indeed need cable tension adjustment. Once you know the brand of the manufacturer, you’ll be able to find a tutorial on YouTube, but I would recommend taking this to a bike shop. If the hub itself has an issue preventing smooth and proper shifting, it’s a very involved process to rebuild (sometimes not possible and requires it to be replaced entirely).