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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 09-07-12, 01:23 PM   #1
duranh62
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chainring bolts?

I have noticed that after a little while my chainring bolts seem to get loose. Its happened with both bikes that I have had.
Is this something normal that just happens with fixies? or is there something I should do to stop it?
Thank you
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Old 09-07-12, 01:28 PM   #2
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Originally Posted by duranh62 View Post
I have noticed that after a little while my chainring bolts seem to get loose. Its happened with both bikes that I have had.
Is this something normal that just happens with fixies? or is there something I should do to stop it?
Thank you
So you already verified that you are torquing the bolts to the recommended #'s?

I assume somebody will say Loctite, since it seems to be the fix for everything here.
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Old 09-07-12, 01:30 PM   #3
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It happens to all bikes.

Clean all the grease off your bolts, apply a drop of blue Loctite, let dry and reinstall the bolts. It obviously won't hurt to check them periodically but you shouldn't have to mess with them very much.
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Old 09-07-12, 01:32 PM   #4
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I grease mine. No loctite.

FWIW, I prefer steel bolts. I also like the ones that have allen heads on both sides.

You gotta torque them more.
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Old 09-07-12, 01:34 PM   #5
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I always used grease too but they kept getting loose. Sugino knurled bolts + Loctite FTW.

And yeah, stay away from alloy chainring bolts.
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Old 09-07-12, 02:29 PM   #6
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Having the knurled bolts is nice because you can tighten them with just your little multitool.
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Old 09-07-12, 02:35 PM   #7
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Exactly. I loathe chainring bolt spanners.
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Old 09-07-12, 03:06 PM   #8
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And yeah, stay away from alloy chainring bolts.
But.... You can't anodize steel?
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Old 09-07-12, 03:50 PM   #9
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Having the knurled bolts is nice because you can tighten them with just your little multitool.
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Old 09-07-12, 03:59 PM   #10
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What would be the difference in tightening the knurled bolts? Still appears you need the chainring bolt tool + allen key. Never used them, so curious is all.
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Old 09-07-12, 04:06 PM   #11
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You don't need to use a spanner at all because the knurled outer edge prevents the rear bolt from spinning. You can just hold it with your fingertip until they start to grab.
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Old 09-07-12, 11:35 PM   #12
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I've had nothing but luck with grease and torquing them down good. I'm pretty firm on this not being a loctite job, but I guess if it works for you do your thing. Those knurled bolts look awesome, by the way.
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Old 09-08-12, 01:38 AM   #13
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I always used grease too but they kept getting loose. Sugino knurled bolts + Loctite FTW.

And yeah, stay away from alloy chainring bolts.
HAHA, scrod, steel is an alloy!

Get some quality steel bolts, use grease and lock them down tight or use blue thread locker.

Last edited by ben4345; 09-08-12 at 01:44 AM.
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Old 09-08-12, 06:52 AM   #14
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I have a feeling you know I meant aluminum.
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Old 09-08-12, 09:35 AM   #15
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I have a feeling you know I meant aluminum.
Yeah, I am just messing with you. Kilo TT
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Old 09-08-12, 10:27 AM   #16
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I used to grease + torque as well, now I blue loctite, I check them periodically and they generally don't move at all.

I still use a chainring bolt spanner too, but I don't mind taking a little time with it.
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Old 09-08-12, 10:51 AM   #17
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I've had nothing but luck with grease and torquing them down good. I'm pretty firm on this not being a loctite job, but I guess if it works for you do your thing. Those knurled bolts look awesome, by the way.
In my experience the chainring bolts on my fixed gears always loosen up. I guess it is the push and pull of the chain from frequently track standing. Chainring bolts have never been an issue on my freewheeling bikes.
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Old 09-08-12, 11:12 AM   #18
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Agree. I have no evidence to back it up, but the "wiggle" effect of applying backpressure may loosen the bolts due to friction.
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Old 09-08-12, 12:18 PM   #19
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Exactly. I loathe chainring bolt spanners.
cause me to destroy my knuckles so many times
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Old 09-08-12, 12:47 PM   #20
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ordered some knurled bolts after I came home to 2 missing from my chainring last week. labor day weekend = not checking up on **** I should've been. no idea how they came completely out, guessing they came loose and I just kept on riding, ignoring that weird feeling from my drivetrain because of alcohol
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Old 09-10-12, 12:03 PM   #21
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on my singlespeed/fixed bikes i always have to retighten new bolts 1x after installing a new chainring or bolts.

i will install, ride for a day or two, retighten, and forget it. dunno why they like to come loose once but they do for me.

if you remember this clip you are probably to old to hang out here:
http://www.youtube.com/watch?v=jxdPr58coTE
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