I changed the cog on my Paddy wagon to a 15t and I'm now in the situation where the rear axle is right at the end of the track-end. If I take out a whole link, the axle is right at the front of the track-end, requiring a chain break to change a flat.

I went to three different bike shops looking for a half-link. I got three different answers; first shop said he had them, but they were out of stock till next week. Second shop had no idea what I was talking about, third shop said they only existed in 1/8 chains.

So whats the deal? Do they exist or not?