Using a Bike Chain Tool

I build unusual bikes that often need custom long bike chains. See the unusual bikes at: http://woodenbikes.com

People often ask: "Where did you find the long chain?"
This instructable shows how to use a Bike Chain Tool to make chains of desired length.

Step 1 Driving the Chain Pin most of the way out

Place the Chain in the lower chain support and advance the tool's Driving Pin against the Chain Pin to push the Chain Pin most of the way out the other side.
DO NOT PUSH IT ALL THE WAY OUT.
Keep backing out the Driver and test (gently bend and pull) to see if you can separate the chain yet.
If you can't, then screw the driver up against the Chain Pin and advance another 1/2 turn then back out and check again.
Repeat ad successeum (That's mechanic-latin for keep going bit by bit until it works)

Comments

[orisj]

Wow! This is amazing: I have this tool in my toolbox but never knew what it was for (inherited it). Now I know.
And what's more: I often wondered how one could make a longer bike chain!
Thank you!!!

[Kiteman]

Very clear - enough to make resurrecting my old bike that little more likely. Would I be correct in assuming normal bike-shops will sell these widgets? Maybe even branches of Halfords? (note for colonial readers: that's an "auto" and cycle spares shop in the UK)

[sharlston]

nope halfords dont sell them i tryed but you can get a cheap one from ebay for a couple of quid

[twocvbloke]

I've got to get myself a chain splitter, as a cyclist living with a semi-pro cyclist, he's insisted that the chain splitter is an essential tool to carry in the bicycle tool kit... :) And yep, he showed me how to use it in exactly the same way... :)

[papa-g]

I just took a chain apart using one of these gadgets and it took me forever to get it back together. Now that I have read your instructable, I realise that pushing the pin all the way out is real bad I learned my lesson the hard way, so I'm glad I got to see how to do this the right way.

[Woodenbikes]

You are more patient then I am. I usually shorten the chain by a link if I accidentally push the pin all the way out.
For a good laugh look at this link and imagine reassembling the chain:

http://www.sheldonbrown.com/chainclean.html

[xenobiologista]

Good grief, that's horrible....then I scrolled down and saw the date that page was uploaded =D

Sheldon Brown is a good reference site for bike-related stuff IMHO. (I'm not a hardcore cyclist but just want to know how to do basic maintenance and repairs).

[dacker]

On my current bike, I too made the mistake of pushing the pin all the way out. I managed to get it back in, but the adjacent links do not pitov nearly as freely as before. I'm not sure what to do about it....

[Woodenbikes]

You may need to do step 6 again where you put the link on the upper (floating) support and drive the pin about 1/4 or 1/2 turn to open up the plates. Another technique for loosening a couple of links is to hold them between your hands and bend the chain side to side leveraging the plates agaist each other.

[Andsetinn]

I'd like to know how you made the chain tool. :-) I see you use long nut but what size and how do you make the pin. A instructable on chain tool making with measurements would be nice. I like your bikes too, someday I'd like to build one. Keep up the good work.

[Woodenbikes]

I didn't make the chain tool. I bought it at a bike shop (typically $6-$12). It is a fairly simple tool that a machinist with drill, mill, tap and die tools could produce from copying a working one. Perhaps someone else can make an instructable on making the chain tool. I'm glad you like the bikes and I hope you don't wait 20 years (like me) to build your own. Now I'm two decades behind in my bike projects.