Hello, I'm suspecting my cog and lockring may be loose because the other day while "attempting" to skid, the cog slipped. Anyway I plan to fix this myself, can I just use any lockring wrench? the one I looked at was the park tool lockring wrench.




https://www.parktool.com/products/det...&item=BBT%2D7#

One thing I noticed with this wrench is that it has 5 teeths(?) and the lockring on my bike only has 4.

Will it work? can anyone point me into the right tool to buy? I have a '07 rush hour.

OR

should I just bring it to my LBS and have them tighten everything? the bike is barely 1 month old.

Thanks.

hozan C-205

Get the Park BB Lockring Tool, should have one end with one tooth and one end with three. Use the three tooth end to tightten track lockrings and one tooth end for BB lockrings. Go to Nashbar under BB tools you'll see it halfway down the page. The one you posted won't work for track lockrings.

I second this... I used to have the park BB/lockring tool (HCW-5). I lent it out and never got it back. I don't want it back, too much strippage. I just got the Hozan C-205 from Ben's Cycle and it inspires confidence... really, it does.

thanks for the response

Do you think my LBS will sell that tool? or must I order it online from nashbar? or from any hardware store?

I don't really feel liek waiting for the shipping.

Did you say your cog slipped? Maybe your cog was loose ( and maybe you know this already...). I think maybe this time you might want to get it checked by your lbs. You don't want it to come off again, you could get hurt next time.

all I know is when I backpedaled the pedal felt like it slipped back a little. I guess thats the cog slipping? the chain isn't loose or anything.
well anyway I'm planning to use the rotafixa method to tighten the cog and then the lockring assuming what I described is indeed the cog coming loose?

I would love to bring it to the lbs that sold me this bike but it's kinda far away. so I figure I'll just do it myself.

I third the Hozan. It's not very expensive, and it's a great tool. Make sure you don't get the first one (the Park) pictured, since many track lockrings only have two slots and that tool would be difficult if not impossible to use on such a lockring.

Hey, I'm looking for a cog/lockring tool too. How about this one? Is it enough?

get the hozan pliers they are much better

Here is another vote for the Hozan lockring tool. It is far superior to the park tool in every aspect (and we generally love park tools).

Hmm, ok, I guess, I'll buy c-205 for a lockring then.

What about a cog wrench? Which one is good? Can I use a road bike one?

Yes.

it's unanimous, Hozan C-205 FTW!!

Yeah don't wait! Every time your cog slips like that it stresses the threads and could leand to stripping. If your lbs doesn't have a hozan in stock, order one if thats what you want. But while you wait, you can tighten your lockring on the cheap with a hammer, a flat screwdriver and some tapping. Just ride fast up a steep hill first to get the cog good and tight.

C-203 Is far superior to the C-205

check it:

https://www.hozan.co.jp/cycle_e/catal...edal/C-203.htm

the hozan's pretty expensive. i use the Park bottom bracket lockring tool that somebody above mentioned - three prongs on one end, one prong on the other. the three pronged end works for track lockrings. +multi-use points, it's also (meant to be) a bottom bracket lockring tool. shaZAM.

Expensive, but totally worth it. Park tool FTL.

I've only scanned this thread quickly - but no one seems to have suggested using a chainwhip. Surely that's the first thing to do? Just get the cog on nice n' tight in the first place.




https://tvvas.blogspot.com/

I agree. Has paid itself off. Well worth the extra $

If you have 3/32nd yes.
If you have 1/8th no, but you can switch the chain.

Spending big bucks on lockring pliers you are only going to use once or twice a year is a waste. A decent single tooth wrench is more then adequate so unless you are changing the cog frequently don't bother with anything better.

That was the closest thing I could find to work at the LBS (plural). One guy told me to use the one tooth and and just hold it on with my other hand so it didn't slip . Yeah, gonna buy a wrench to use more leverage, and limit it by my left hands ability to hold it on as the added wrench torque tries to pull the tooth out.

Anyways, I happened to try the three tooth end and it worked. It's a little tight with a 1/8th surly cog and 1/8 KMC chain (not HD) but can still be used without pulling the chain off. Definatly glad I got that tool... feels very secure/tight.

i've had nothing but frustration with single-tooth wrenches, as the contact between the concave part of the wrench and the lockring lifts the tooth out of the notch on the lockring and makes it slip. maybe i just wasn't using the best single tooth wrenches. either way, the three-pronged dealie addressed that problem.

yeah given the price of three tooth wrenchs it doesn't matter that much. Since all my lockrings only have two notches a three tooth would be kinda worthless for me though.

Also I think you have to keep in mind that with cheaper ones you have have to take a file to the tooth to get it "sharp" enough.

+aliens on this wrench. I bought a cheaper one (it blew) and then my girl decided to pick this one up. Can't say enough good things about it.