jamey

this might be a stupid question but it's kinda freaking me out. i just bought a new rear wheel and when i put my cog on i put it up against a wall and mashed down on my pedals as hard as i could and then tightened the lockring down with a lockring tool. i rode it around for a bit and then tightened it up more until i felt comfortable with it being tight enough. anyways, today i went to take off and i felt a slip..if i'm not applying back pressure then isn't it most likely that my wheel slipped in the ends? i tried tightening the lockring and it wouldn't get tighter so i'm thinking it's the wheel slipping. any input?

baxtefer

if your wheel slipped in the ends then your chain would be loose... is it loose?

maybe you slipped on some ice? (wait you're in florida. scratch that) a wet manhole cover perhaps?
did you grease the threads?

xthugmurderx

if the cog isn't all the way tightened down, the lockring isn't going to fix it. get a chainwhip or do the rotafix whatever and then tighten the cog. and tighten the axle bolts too, if that's what you're worried about.

-jason

Lunigma

tightening a cog with the pedals like that never does anything, a chain whip works better. if you use the pedals to tighten it then it's only as tight as the pedals can get it. that means that you could more than easily also strip your threads when you apply backforce, cause your applying the same force that you applied putting on the cog.

ps. i hope that made sense. use the rotafixa method if you don't have a chainwhip: https://204.73.203.34/fisso/eng/schpignone.htm but use a lockring

fixedpip

Sorry to hear of your issues here. I hate that feeling when you stop trusting your equipment.

One option is that your cog may have a shoulder thats to narrow for your new hub, unlikely but worth checking. Your lockring maybe snug but it may not be able to get snug against the cog.

What you running in the back there?

But it sounds like your wheel may have slipped from your description. Again what hub you got back there? Some hubs have really poor nuts that really aren't up too much.

jamey

i immediately checked the chain tension but my wheel is so far up in the ends that a little slip wouldn't really make a difference in the chain tension. i greased all the threads and the pedal method just made sense to me because i figure with all my weight mashing down on the pedals it would get tighter than a chain whip and my arm strength(i'm weak!). it's a formula hub with eai cog and DA lockring and i've used formula hubs before and didn't have this issue. i'll check the shop and see if they have some nuts that look like they might do a better job.

Lunigma

you should really just use the rotafixa method. im sure i'm weaker than you (120pounds, 5'7"), that's what i use. it works better than anything else. i use it on a really crappy hub (suzue). it should work fine on your hub.