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PostPosted: Sat Mar 31, 2012 11:34 pm 
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Hi everyone. I've seen some mods done to the Shimano 7700 and 7800 rear deraillier, and one of the steps is to disassemble the entire piece. I got most done, but the hinge pins that are captured are a bit tricky and all the mods no one explains how to do this. The first photo is mine and the other is a mod posted online.


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Posted: Sat Mar 31, 2012 11:34 pm 


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PostPosted: Mon Apr 02, 2012 4:00 pm 
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No mechanics here? ha ha, :noidea:


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PostPosted: Mon Apr 02, 2012 4:54 pm 
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My guess would be that you hammer them out with an appropriate sized punch. But I'd wait for advice from someone who has done it...

I recall seeing a tuned one where the pins had circlips on the ends.


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PostPosted: Tue Apr 03, 2012 6:20 am 
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I never understand how people are able to cleanly remove these one way pins. more annoyingly, they never tell how they did it! My only guess (and i thought about doing this) is to drill a small hole on the opposite side to enable a small punch to go in and knock it out. I took the pins off of my Sram force Rd but the difference is those pins had (hats?) or ends to them that can be pried out with a wedge tool.


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PostPosted: Tue Apr 03, 2012 11:42 pm 
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Yeah, I racking my brain trying to figure it out. May just drill out the other side and c-clip it in in the future or something. No one shows how. :roll:


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PostPosted: Wed Apr 04, 2012 12:24 am 
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Location: MN
Perhaps you could drill and tap a hole in the end of the pin. Then use a screw and some washers to extract them. :noidea:


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PostPosted: Wed Jun 13, 2012 4:25 pm 
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fallen86 wrote:
I never understand how people are able to cleanly remove these one way pins. more annoyingly, they never tell how they did it! My only guess (and i thought about doing this) is to drill a small hole on the opposite side to enable a small punch to go in and knock it out. I took the pins off of my Sram force Rd but the difference is those pins had (hats?) or ends to them that can be pried out with a wedge tool.


I'm also looking to remove the pins of my Force RD. Could you give some more information how you got them out?

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PostPosted: Sat Jun 16, 2012 11:43 am 
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Same question here. Help us out. PLEASE

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PostPosted: Sat Jun 16, 2012 11:51 am 
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I got mine out of the force derailleur.
The ones that link the plastic P-knuckle to the magnesium link of the parallelogram can be pulled out quite easily: just pry a little screwdriver onder it. It will damage the aluminium and magnesium a bit, but you can sand it down afterwards.
The 2 other pins are soldered, so they can't be pulled out. But if you drill in the whole where they are soldered, you can pull them out fairly easily. I will post a picture of this later.

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Posted: Sat Jun 16, 2012 11:51 am 


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