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Anti-theft binder bolt for 80s Bridgestone?

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Anti-theft binder bolt for 80s Bridgestone?

Old 03-09-17, 07:49 PM
  #1  
kalash74
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Anti-theft binder bolt for 80s Bridgestone?

Anyone know if this bolt

https://www.timbiketu.com/products/a...st-binder-bolt

will fit a 1986 Bridgestone MB-1? The inner diameter of the integrated seat collar on the bike is somewhat less than 7mm. I can't quite fit an M7 bolt through it. The stock quick release bolt looks like an M6.
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Old 03-09-17, 08:14 PM
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Maybe it's not metric?
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Old 03-09-17, 09:11 PM
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They have a collar for just such occasions:

https://www.timbiketu.com/products/a...eat-post-clamp
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Old 03-09-17, 09:38 PM
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I see they offer 5,6 & 8mm bolts for saddles; I would imagine they offer the same for the seat post binder bolt. I'd shoot them an email.
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Old 03-10-17, 03:06 PM
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I have an MB-1 set up as a commuter and use Hal Ruzal's method of some old chain in some inner tube keeping the seat from easy theft.
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Old 03-12-17, 05:19 PM
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Originally Posted by kalash74 View Post
Anyone know if this bolt

https://www.timbiketu.com/products/a...st-binder-bolt

will fit a 1986 Bridgestone MB-1? The inner diameter of the integrated seat collar on the bike is somewhat less than 7mm. I can't quite fit an M7 bolt through it. The stock quick release bolt looks like an M6.
I got an anti-theft seat post binder bolt for my errand bike, a Motobecane Super Mirage. It was slightly too large, so I used a reamer on the clamp's hole to get it to fit.
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Old 04-29-17, 03:23 PM
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kalash74
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Anti-theft binder bolt

Well...the bolt from timbiketu didn't work out. Too flimsy, snapped in half.

Back to square one. Any ideas? Atomic22 looks interesting, but they are based in England, I think.
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Old 04-29-17, 04:29 PM
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Just use a 6mm bolt and nut then
and glue a ball bearing into the hex hole on the bolt afterwards.
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