Picture of DIY Lockring Pliers
You can buy different types of tools to remove the lockring from a fixed gear track bike. Some are the spanner type and some are pliers. I like the pliers best but I don't want to shell out $30-$50 for a set so I decided to make a set.

Step 1: Gather your weapons!

Picture of Gather your weapons!
First thing is to buy some pliers. I bought a cheapo set from Menards for $5 and they worked great. Just make sure you buy a big enough set that they'll open wider than the locking and still have the jaws parallel to one another.

You'll also need something to file the metal, I liked to use a hand file but you could also use a dremel tool with a stone wheel. The cresent wrench in the picture is to take the pliers apart, you probably don't have to take them apart but I thought it made it easier.

Rafiqk83 made it!9 days ago

I had a problem where the bike would slip only under heavy pedaling. The bike completely slipped from under me causing me to get scraped up pretty bad and breaking my phone. The bike shipped in a box and the original owner put the dang-on cog wrong. It had a gap on one side and it was flush on the other. I live in Kuwait, and had to made this lockring wrench out of an adjustable wrench (or whatever the name is) and viola. It worked! I got the cog off, it looked like it wasn't stripped, then put it on where it was flush all the way around. I used my diy lockring wrench to tighten, and I will test tomorrow. Wish me luck.

The lockring wrench only took a few minutes of vigorous filing. As you can see in the pic, I didn't even get it down very far and it worked like a charm.

Thanks a million.

lockring wrench diy.jpg
Triole6662 years ago
Excellent! You saved the day, thanks a bunch
rigtenzin2 years ago
I'm going by the hardware store on the way home to buy a set of channel locks so I can build this. It's a brilliant project. Thanks
kelseymh5 years ago
Technically, you've modified channel locks not "pliers."  Other than that, well done!
"Technically" they are slip joint pliers (also known as water pump pliers). Channel Lock is a brand name.

Nicely done russd32.
Touche!  Well played, sir, well played :-)
Theoretically, the same concept could be applied to a set of Vise-grip brand locking pliers.  >random heckling from the crowd<
I was just thinking the same thing, with the benifit of being able to lock them on!

great bit of thinking here though,hats off.
Made a set for myself today out of El Cheapo Pliers from Harbor Freight. Great Idea and thanks for saving me some money!
Yours looks better but it all works the same I guess. :P
sprinks5 years ago
I just made one the other day with my bench grinder and a spare set I had laying around. Thanks for the instructable, this will make a great tool to keep in the bike tool box and a nice replacement for my missing pedro trixie multitool.
tisit15 years ago
in the land down under we call them Multi Grips so there you go self explanitory Aussie Aussie Aussie oi oi oi
maxlycos5 years ago
Very good idea. Thanks for sharing.
profpat5 years ago
 very clever, yes, this is a cheap alternative...
russd32 (author) 5 years ago
Thanks for all the kind words folks!
trgz russd325 years ago
I have two pairs of those type of pliers and a couple old bikes without sealed BB's so I may well be doing this myself. Could be good for old -style headsets too. Nice one.
Jur5 years ago
Nicely done, clear and easy instructions for a very good result.
Can you still use them as slip joint pliers/water pump pliers/channel locks/polygrip, or are the teeth filed away too much?
russd32 (author)  Jur5 years ago
I wouldn't use them for anything else. They teeth are super dull so they won't grip much. Also I wouldn't want to damage the squared off edge I filed to fit in the lockring teeth.
shiftrk5 years ago
Great job this will come in handy
asibonzai5 years ago
Very cute idea for old lockring pliers.
desertdog5 years ago
Very interesting mod for pliers (note that I did not enter into the game of naming them specifically).  I bought a "cotter pin pliers" from Sears many years ago.  They are pretty much the same as what you did.  Possibly  the most useful tool I have ever bought.  Don't think they sell them anymore. 
ascii5 years ago
Thanks - that's a nice, simple hack that I wouldn't have thought of.  Modifying tools is one of the more rewarding things one can do.
rimar20005 years ago
DIY Dave5 years ago
When I first read the title, I thought it said "DIY locking pliers". I thought you were making a pair of vise grips from channel locks.
kissiltur5 years ago
that is brilliant!, and so simple!
lemonie5 years ago
That's simple, and so nicely done.

trayo5 years ago
Awesome. I will definitely keep this in mind for the future.