For Sale: Titanium and carbon fixie, complete bike

Eek! Didn't look at the close up.

^There is no thread for a lockring. look in the detailed picture of the hub...that is a normal road hub, is not even for single speed.

I wouldn't push your luck on that one - last time I checked 'risk' was the expected value of a future event - the fact it hasn't happened yet is exactly what makes it risky. So I wouldn't say calling it risky is silly.

Might be interested in the cog if you split.

Not ideal, for sure, but "risky"... not so far after a couple of 20mile shakedown runs.