Chainring & Chainring Bolts Question

Here's a question for those who know....

 

I just recently put a new single speed 42T chainring on my winter bike and used the chainring bolts that were on the old chainring to install it.

 

Well, I was riding home the other night and during the ride I swore I heard what sounded like something falling off of my bike, by the time I got home, I noticed some give when I was pedaling, I thought nothing of it til I got my bike down last night to prepare for this mornings ride.

 

Well, turns out all of my chainring bolts were loose and one was missing, hence the give when pedaling.

 

My question is, the OG chainring bolts I used had washer type things on the back of them, which i kept on. (I flipped the bike to fixie last weekend and can't overlook the correlation between the increased torque of riding fixie and all of the chainring bolts suddenly all coming lose and one being tossed) Would this problem be solved using single speed chainring bolts and losing the washers?

 

Any insight would be greatly appreciated, I'm new to doing my own bike maintenance and repair, so every hiccup like this requires a google deep dive and fumbling through trying to figure out what went wrong!

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Permalink Reply by Doug Haynes on November 18, 2011 at 4:56am

They were not tight or were the not installed correctly.

 

With a spacer under them to compensate for the difference in grip length longer bolts will work just fine; I have run chain ring bolts that used spacers and never had an issue. 

 

Make sure you are getting them properly tightened and that they are not bottoming out or only engaging a couple of threads.

Permalink Reply by A.K.A Paul on November 18, 2011 at 5:56am

That happen to me after I changed a chain ring.  Almost the same as you describe.  I wiped the bolts off really well with a clean rag an reinstalled them using Loctite.  No problem after that. 

Permalink Reply by ID on November 18, 2011 at 6:26am

Excellent, thanks for the help guys.

 

I'm trying to avoid buying them online, as I'd like to ride my bike next week, but I'm not sure where I'll find single speed chain ring bolts locally over the weekend.

 

 

Permalink Reply by Adam Kitzmann on November 18, 2011 at 6:36am

I would imagine  Yojimbo's would have some, Marcus seems to have every single piece of gear I need whenever I need it. 

Ian Dinsmor said:

Excellent, thanks for the help guys.

 

I'm trying to avoid buying them online, as I'd like to ride my bike next week, but I'm not sure where I'll find single speed chain ring bolts locally over the weekend.

 

 

Permalink Reply by Greg Makowski on November 18, 2011 at 7:59am

I've bought them from reCycle on Michigan before.

Permalink Reply by Doug Haynes on November 18, 2011 at 8:04am

In stock at Rapid Transit on North Ave.

 

Or at least they were yesterday...

 

Ian Dinsmor said:

Excellent, thanks for the help guys.

 

I'm trying to avoid buying them online, as I'd like to ride my bike next week, but I'm not sure where I'll find single speed chain ring bolts locally over the weekend.

 

 

Permalink Reply by mark stetson on November 18, 2011 at 1:23pm

Loctite is overkill in my opinion, but it would probably seal the threads from salt and resultant corrosion.  If you use it, use blue not red.  I always oil the threads on mine, have never had one come loose.   

Permalink Reply by Joe Willis on November 18, 2011 at 5:08pm
I have some in the parts bin at home. I can even help you install them.
Permalink Reply by ID on November 19, 2011 at 3:07am

Hey Joe,

 

That would be awesome. I called a few bike shops that were close to home and the one I settled on was 15 bucks for bolts out the door. Double the price of what they were online, but theres no way I wanted to not ride all next week waiting on bolts to arrive via mail.

 

Let me know where you are, when would work, etc. 

 

Thanks!

Joe Willis said:

I have some in the parts bin at home. I can even help you install them.
Permalink Reply by Thunder Snow on November 19, 2011 at 4:30am

Chainlinkers continually prove their amazing awesomeness:

Joe Willis said:

I have some in the parts bin at home. I can even help you install them.
Permalink Reply by Unicyclemike on November 19, 2011 at 5:26am

Blue loctite all the way for chainring bolts.

 

Also make sure that bolts are not spinning you may need a Chainring nut tool to snug them up the last little bit, 90% of the time it is not needed but it does happen. 

 

Permalink Reply by Joe Willis on November 19, 2011 at 7:19am

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