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Disconnecting 7 spees hub for tire change

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Disconnecting 7 spees hub for tire change

Old 05-02-12, 04:10 AM
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fishboy_chris
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Disconnecting 7 spees hub for tire change

Hi guys, so I have a tire i need to change onto the back of my city bike. I've never changed a tire on a bike with an internally geared hub before, ans i'm not sure exactly how to disconnect it to get the wheel off and swap tubes\tires.
There is a cable to a black plastic housing with super 7 written on it that is attached to the right side of the rear axle beyond the nut.
Any help would be appreciated!
Thanks, chris
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Old 05-02-12, 07:15 AM
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So I believe this is a sachs super 7 hub, and theoretically I should be able to simply unscrew the metal cap on the clickbox and it will just come right off, right?
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Old 05-02-12, 10:43 AM
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I don't have that particular hub but I believe you loosen the small thumbscrew at the rear of the clickbox to release it. You will also have to undo the reaction arm on the other side of the rear axle; DON'T forget to reattach it. Then the axle nuts are loosened to release the wheel.
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Old 05-02-12, 11:55 AM
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SBinNYC
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http://cdn.sram.com/cdn/farfuture/uU..._S7_8_2005.pdf
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Old 05-02-12, 01:00 PM
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Yes, that is a Sachs 7 speed. To disconnect the clickbox, put the shifter in 1st gear, loosen the thumb screw on the back of the clickbox and slide it off.
There will be a thin rod inside a sleeve extending inside the axle. Take care not to lose these. The red plastic locator should hold the sleeve in place, but the rod inside it can slide out very easily and be lost.
There should be an anti rotation washer on the non drive side. Take note of whether the tab faces forward or rearward before removing the wheel and return it the same way.
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