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Singlespeed & Fixed Gear "I still feel that variable gears are only for people over forty-five. Isn't it better to triumph by the strength of your muscles than by the artifice of a derailer? We are getting soft...As for me, give me a fixed gear!"-- Henri Desgrange (31 January 1865 - 16 August 1940)

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Old 09-04-12, 11:59 AM   #1
Potential
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Preventing my bike from getting piranha’d...

Hiya. I am a newb so apologies for retreading on an old topic, but lately in Chicago, not only is bike theft a problem, but also the theft of components. A couple of my friends have recently been victims of bike piranhas. They’ve come back and noticed their bike is missing a saddle or a front wheel. Just last week someone stole my friends whole front end, locked up in a brightly lit area. Besides using security lock screws like Pinhead (http://www.pinheadcomponents.com/) are there any other ideas on how to prevent theft? Specifically, I am worried they will steal my saddle (I just upgraded to a Fizik Airone) and the last thing I want to do is come back to my saddle missing after I am 20 miles away from home. Any ideas, suggestions? I can't find a security lock for the swivel nuts on a Thomson Elite seatpost, so wondering how folks keep their saddle from walking away? Any thoughts/ideas would be appreciated. Please let me know!
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Old 09-04-12, 12:01 PM   #2
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Use loctite to fasten a ball bearing into the hole on your seat clamp bolt.
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Old 09-04-12, 12:10 PM   #3
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Ball bearing and superglue
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Old 09-04-12, 12:10 PM   #4
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thats a good idea, how do you get it out later?
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Old 09-04-12, 12:14 PM   #5
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thats a good idea, how do you get it out later?
A pick and goof off.
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Old 09-04-12, 12:18 PM   #6
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isopropyl alcohol. Or acetone if you're careful.

I'd be tempted to spot-weld it, and forget about taking it off.
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Old 09-04-12, 12:22 PM   #7
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good ideas.
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Old 09-04-12, 12:25 PM   #8
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Old bike chain wrapped in old tube.

Last edited by Jared.; 09-04-12 at 12:30 PM.
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Old 09-04-12, 12:44 PM   #9
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Old bike chain wrapped in old tube.
I had that until my chainwhip broke. Now my saddle is naked and it scares me.
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Old 09-04-12, 01:25 PM   #10
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Take one off an abandoned bike, I'm sure there are a couple of those around Chicago. Or from a bike you work on, I'm sure you have replaced a chain at some point.
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Old 09-04-12, 01:28 PM   #11
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Ball bearing and superglue
You just have to watch out about using too much glue. I have helped people remove the bearing and it's a huge pain. They put too much and it seeped in far enough that acetone didn't help, so we had to repeatedly cut at it with a dremel to heat the ball, which broke the bond, and make room to wedge it out.
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Old 09-04-12, 01:30 PM   #12
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thats exactly what I thought would happen.
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Old 09-04-12, 01:46 PM   #13
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I have talked to a guy that said mixing some glue and saw dust worked pretty well. I havent tried it but I guess picking at with acetone and a knife will would workout pretty easily
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Old 09-04-12, 02:14 PM   #14
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Thanks all for the replies and ideas, seems like there should be an easier solution out there. I am not sure doing the superglue thing would work out well for me, knowing my luck. Going to check in with my LBS as well. Thanks again for the help.
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Old 09-04-12, 02:34 PM   #15
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Why don't you just take the saddle and post with you when you lock up?
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Old 09-04-12, 02:37 PM   #16
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Why don't you just take the saddle and post with you when you lock up?
You are right, though sometimes I just want to lock up and go to the bar for food/drinks. Didn't want to have to bring in my helmet, backpack and a saddle/post if I didn't have to. Have lots of gear with me as is. Was just asking the group since it seems like folks like to upgrade components and wanted to see what solutions/options are out there.
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Old 09-04-12, 08:58 PM   #17
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Why don't you just take the saddle and post with you when you lock up?
Bc it's coated in grease?

Super glue and a ball bearing. BFD. When you need to dismantle you'll be able to tip the bike you way like and let the acetone soak in.
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Old 09-04-12, 11:31 PM   #18
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Take one off an abandoned bike, I'm sure there are a couple of those around Chicago. Or from a bike you work on, I'm sure you have replaced a chain at some point.
yeah, I probably will before I lock anywhere outside again. As of now, I take my bike out of my apartment, ride to work, and hang it in the "employee parking" area inside the shop.
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Old 09-04-12, 11:52 PM   #19
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I use those small magnetic balls. Pop one in and its impossible to get out without a strong magnent. Same effect with no glue.
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Old 09-05-12, 12:12 AM   #20
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I use those small magnetic balls. Pop one in and its impossible to get out without a strong magnent. Same effect with no glue.
Earth magnets? Hadn't thought of that.... Might try it.
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Old 09-05-12, 01:23 AM   #21
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