Loose Lockring AGAIN!
 

Hello, I recently purchased a new wheelset after stripping my last hub due to not having the cog/lockring tightened down enough(bought it from my LBS, they did the installation).


This time I installed it myself, first I greased the threads, tightened the cog(rotafixa) and then used all my strength and tighten the #$@% out of the lockring with lr tool.

after getting everything done, I decide to go take a ride. no hills or anything, just flat roads. well afterwards I decide to check up on the lockring. Ahhhh! I was able to tighten it a little bit more again!

did I tighten the cog more by just riding? which left a little more room for the lockring to be tightened again? or did I not tighten it to begin with? but, but, I really really tightened it the first time.

Is this normal? should I have anything to worry about. nothing slipped during the ride. i've been having nothing but problems with my first fixie. :(

Ahhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh!!!!!


btw- I have DA cog/lockring. no more cheap stuff.

don't grease, use loctite

if you just installed the cog / lockring and then went on a ride the cog will tighten. so yes, you need to tighten the lockring some more.

no, use grease.

A chainwhip is nowhere near as torquey as just riding your bike. Whast happened to you is totally normal, in fact it's the mander recommended procedure for installing a cog. Spin on the cog and lr, ride (preferably hard and up a hill), and then tighten your lockring.

hmm but I didn't use a chainwhip, instead I used the rotafixa method which I thought would tighten the cog down even more so then using a chainwhip or mashing up a hill.

for those who don't know what the rotafixa method is:
http://204.73.203.34/fisso/eng/schpignone.htm

loctite is for *******. use grease and muscle that **** in place.

i've learned my lesson when it comes to lockrings, one hub stripped, one hub had it's threading shell sheared off.

once its on, sprint down the street or mash the bike up a hill. dont use your brakes or resist to stop, just coast till you stop moving, then get off, and tighten it more. two cycles should do it, three could be overkill.

personally, i use an old 1/8" chainwhip that has a tooth notch then combine that with a 3 foot cheater bar to get all the leverage in the world. of course, this would be a two man job.

You do NOT need locktite on a proper track lockring, and it'll give you hell removing it. The opposite threading makes it pretty much unpossible for the cog to loosen once it's tightened - grease is what you want. +1 on everything everyones said about installing, tightening, riding hard, but forwards only, and then tightening again.

Grease or anti-seize. Tighten, ride, check lockring. Do this for the first few rides.

Don't listen to the loc-tite poster, they'll make your life hell in the future.

Has never failed me...

i just tighten it really tight with a chainwhip...no cheater bar or nothing...then i put the lockring on and tighten it really tight. i never have any problems with the cog moving...matter of fact that thing was a real sonsa***** when i last had to remove the cog. it took me 30 minutes and about 15 attempts before it moved.

grease, not locktite.
once you get the cog pretty tight you need to really torque it.
the best method i've found is to have a tire on the rim, inflated. then set the rim on the ground parallel to your shoulders, then lean over the rim and lean it on your knees, you legs bent a little. now hold the tire in place with one hand and also put pressure on it with your knees. have your chainwhip parallel to the ground or maybe in the 1 o clock position. use one hand on the tire to rotate the rim against the chainwhip while you use the other hand to tighten the cog with the chainwhip.

so am lucky with loctite?
didn't have a loose lockring and didn't have problem removing it...
next time i'll try with grease!

Blue loctite isn't that much burlier than just greasing something. The real point is you want something slathered in between the Al and the steel to prevent galvanic welding.

People seem to be going bananas tightening stuff lately, folks gotta realize that overtightening strips more stuff than undertightening. Do what people are suggesting here, put the cog on, ride, tighten lock ring well but not he-man tight, and ride. Perpetually tightening the crap out of stuff will eventually strip it, especially on a bike that is subject to a lot of temperature changes.

I have to agree with everyone that the tighten-ride-tighten method seems sound, but in all of my experience with either of the guys at my old LBS, you only need to do it once if you put it on right. Grease, tighten cog like crazy with a chainwhip, tighten lockring like crazy, ride and faghettaboutit.

So you mean I can just use Loctite instead of grease, like even for my headset bearings, or repacking my pedals?

That's clearly not what he was saying.

Brandune wins for best post ever! I assume he was joking? No one is that stupid...

LOL! I hope he is kidding.