Some might recall that I picked up the holy grail of fixed gear bikes a while back... my 1955 Raleigh Lenton.

It came with a 16 tooth cog and nothing on the flip side and being Scottish and not wanting to pay what the shops here ask for single cogs and lock rings (and I wanted vintage anyways) I've been hunting for both and found what I was looking for...

... in my own freaking shop !

I was helping my friend build up her fixed gear (ghetto conversion) and was searching for a 14 tooth cog and while doing that found a single threaded cog with a 1/2 by 3/8 size... this is what hard core BMX riders use (you should see the chain) but I couldn't see this cog going on a BMX bike or fitting on my Lenton that uses standard 1/8 chain.

I got to thinking that it may have come from a very old coaster bike, fixed gear, or track bike so went snooping through our bin of old parts and found a veritable treasure trove of old coaster brake cogs that were threaded, used lock rings, and were in a 1/8 size.

In my world, coaster bikes have always used a cog that goes on like a cassette and is held in with a spring clip.

So anyways... the 1/8 cogs have a standard thread pitch, they're vintage, and the lock rings were also the correct size.

So now the flip side of the Lenton's hub is sporting a rather nice 18 tooth cog as well as some shiny new lock rings that cost way less than a Surly cog and lockring.

So besides that and finding a 1963 Peugeot road bike in near perfect shape...my week has been pretty good.