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Old 10-22-2014, 01:46 PM   #1
Bamabrat   Bamabrat is offline
 
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Check Your Bolts!!!

Lately I've been busy with life...kids, new house, new truck, work, Masons, etc. I haven't ridden the bike as much as normal, but I still ride it 1-2 days per week. I rode it yesterday. I rode it to work this morning, and back home for lunch (1 benefit of moving to a new house). So I'm on my way back to work, enjoying the beautiful weather (sunny, 64 degrees), and pull up to the badge scan at the parking deck...and almost run into the freaking door because my front brake didn't work. Pulled my brake again...no problem. Weird. Scan my badge, go into the bike parking area. Check out my brake fluid, connections....all good. About to walk away and chalk it up to me going crazy when I noticed that my front left brake caliper lower bolt is completely gone! The top is loose, and the top brake caliper is normal, but the lower is fully extended onto nothing but the brake shoes! WTF!

A month or so ago I added SS brake lines, but we torqued the bolts when we reinstalled the calipers. Well, either someone tampered with it (maybe the old lady is going for the insurance payoff) or vibration loosened them. Either way, I should have checked them before now. I've got my wife checking our driveway for the bolt, but I doubt she'll find it. I've gotta get home, so I'm going to tighten the crap out of the top bolt and zip tie the heck out of the bottom until I can get home (10 mins away), being more careful than even when it was sleeting last year.

I tell you all this to say, please take a little while to go out and check the bolts on your bike. This could have easily ended very badly for me. Not 3 minutes before that I was going 60 mph down a 4-lane road that is VERY busy during lunch.

Is there any chance of going to a local hardware store and finding this bolt? I doubt it, but before I order one online, I want to check. It's 12mm head, 2" long not counting the head, and threaded only on the last 1/2 inch.
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Last edited by Bamabrat; 10-22-2014 at 01:54 PM.
 
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Old 10-22-2014, 02:27 PM   #2
id-man   id-man is offline
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Yikes!!!
It's definitely worth checking your local hardware store for that bolt, auto parts store too. It's funny how one hardware store can carry lots of a particular type of fastener like stainless steel or metric sizes where another store won't carry hardly any. Good luck.
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Old 10-22-2014, 03:35 PM   #3
HwyRider   HwyRider is offline
 
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check bolt depot.com
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Old 10-22-2014, 03:42 PM   #4
redjay   redjay is offline
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From your description it is probably 8mm diameter x 1.25 thread pitch (standard for 8mm) x 50mm long.

Most bolts after a certain length will have some of its length that is not threaded.

Hope you get home safely. Get some blue Loctite while you are at the store :)
 
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Old 10-22-2014, 04:16 PM   #5
redbrd   redbrd is offline
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I had the same thing happened to me on my dirtbike, I was coming down a very steep trail grabbed a handful of front break and there was nothing there, I looked down to see my front brake caliper just swinging on the cable, The top bolt had backed out and the bottom one had disappeared altogether, I manage to tighten the top bolt and jam a stick in the bottom hole I made it back to my truck, I remembered when we put the bike together my son put the front wheel on I did not remind him to put Loctite on the bolts, my fault.
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Old 10-22-2014, 05:31 PM   #6
MAS Tequila   MAS Tequila is offline
 
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Ron Ayers fiche says that it is a 10x47.

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Old 10-22-2014, 08:02 PM   #7
ctrider   ctrider is offline
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That could of been a lot worse glad the only thing you need to replace is a bolt.
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Old 10-22-2014, 08:23 PM   #8
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That's why I love lock-tite
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Old 10-22-2014, 08:38 PM   #9
toogun   toogun is offline
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Quote:
Originally Posted by ant View Post
That's why I love lock-tite
I torque everything that has specs.
Do you guys really use Loc-Tite on your calipers?
Unless the manual indicates Loc-Tite I don't used it.
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Old 10-22-2014, 08:44 PM   #10
redjay   redjay is offline
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I use Loctite on most bolts on my bikes these days, especially if they are bolts that you cannot afford to lose for safety reasons.
 
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Old 10-23-2014, 06:03 AM   #11
mick56   mick56 is offline
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Are'nt they m10 allen bolt's ?
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Old 10-23-2014, 08:29 AM   #12
mapleleafalumnus   mapleleafalumnus is offline
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Guys --
TIGHTEN YER NUTS!
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Old 10-23-2014, 10:32 AM   #13
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Before you run out and buy a bolt from the hardware store, check the grade of the bolt. If you replace a bolt with an inferior grade of bolt it could sheer off under stress.
http://www.k-tbolt.com/bolt_chart.html
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Old 10-23-2014, 01:03 PM   #14
rick6375   rick6375 is offline
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Since you still have the one bolt, you can take it with you to match up the type and size. Bad news is, most hardware stores only carry metric bolts in 5mm incriments so wont have exact length, and shorter would be bad and longer may have clearance issues.
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Old 10-23-2014, 01:07 PM   #15
mick56   mick56 is offline
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Quote:
Originally Posted by rick6375 View Post
Since you still have the one bolt, you can take it with you to match up the type and size. Bad news is, most hardware stores only carry metric bolts in 5mm incriments so wont have exact length, and shorter would be bad and longer may have clearance issues.
Hacksaw a bit off then file the end to a slight taper, job done
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