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Remove bike wheel - 5 side Allen Bolt

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Remove bike wheel - 5 side Allen Bolt

Old 09-13-20, 03:45 AM
  #1  
astone42
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Remove bike wheel - 5 side Allen Bolt

I bought a city bike in a garage sale last month.
Last week I got a flat tire and I would like to remove the wheel to change the tire, but it seems that I need a special tool or something to do that.
I attached a couple of pictures of both sides below.
  • Do you know how can I "unscrew" it?
  • Can I buy any quick release skewer as a replacement so I won't have the same problem in the future?
Thanks a lot in advance for your assistance and for sharing your experience with me


Edit: Hmmm... apparently the forum does not allow me to upload pics

Edit2: I uploaded them as an album in my profile

Last edited by astone42; 09-13-20 at 03:49 AM.
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Old 09-13-20, 04:21 AM
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nomadmax 
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BMW used to use penta fasteners on their radios; they required a specific tool to remove them. The fasteners on your bike may be there for "security" reasons so I'd start with looking at who made the part(s) first, it could be proprietary.
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Old 09-13-20, 04:34 AM
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Previous thread: 5 Side Allen Bolt?? Anti-Theft Skewer? Help!!!
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Old 09-13-20, 04:36 AM
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Trevtassie
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Looks like some variety of Pitlock. You're probably gonna have to drill the end out, or slot it to use a screwdriver and get a new skewer.
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Old 09-13-20, 07:08 AM
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Moe Zhoost
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Picture from OP's album. Most of the bikes manufactured for bike share use had, as anti-theft measures, fasteners that required a proprietary tool. I reckon that you could be lucky in finding the right tool, or perhaps you could make one. There are pentastar security bits available so perhaps they would work.

This looks like a through axle configuration so I guess a last resort would be to destructively remove the axle nut so the axle slides out and then and replace with a standard one. Make sure you understand how this configuration works, though. For instance, 1) which nut is the one that you remove? 2) is the through axle a standard diameter?

Welcome to bike forums and good luck to you. Let us know how you resolve this.


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Old 09-13-20, 08:11 AM
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dsbrantjr
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Some Girling brakes use a 10mm 5-point driver: https://www.amazon.com/Laser-2948-Pe.../dp/B0039UJKUE Could work, yours looks close to the same size.
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Old 04-26-21, 12:03 PM
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In the end I bought some cheap "anti-theft" skewers from aliexpress that were including a 5-side Allen key and it worked perfectly
(just for reference in case anyone stumbles into this topic)
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