Mikefule

I have had a chain whip suitable for my 10 speed freewheel for a couple of years. I think I bought it for a specific job and I've barely used it. With hindsight, I should have bout a 1/8" whip instead as I tend to swap cogs on the fixed gear more often.

A bit strapped for cash at the moment, andI've already bought a few odds and ends of tools, bar tape, a new chain, etc. over the last month.

So I took my old 1/8" chain which I've just replaced. I gave it a good soaking in degreaser and cleaned it up.

Then I got my chain tool, marked out "mirror image" holes on the flat steel handle, and drilled 3 x 4 mm holes.

I was able to split the old chain into the right lengths using my chain splitter tool. However, the chain splitter wouldn't fit in position for me to be able to rivet these short sections of chain to the handle of the whip.

A bit of improvisation: a heavy block of wood and a very small spanner (about 6 mm) made a suitable anvil, and with a few taps with the hammer, I was able to get the rivets through.

One side of the chain whip now fits the 1/8" cogs on my fixed, and the other side fits the narrower cogs on my 2 x 10 gravel bike.

Saved a few quid, and a great sense of satisfaction.

geeteeiii

I made this out of a old seatpost, works fine so dont see myself replacing it soon.

abshipp 

I found myself needing a 1/8" chain whip the other day but made do with alternate means that I won't discuss here

I've got a 3/32" single sided whip somewhat like you described - this is a great idea. Thanks for sharing!