Origin 8 brand Hornet 108 Single Speed Freewheel. 18 Tooth, 3/32" chain (fits multi-speed chains). 108 points of engagement (quick 3.33 degrees of free rotation) with 9 pawls, CNC chromoly construction, chrome plated, precision bearings, fits 8-key removal tool.
I used this for one short ride and did not like the loud buzzing sound while coasting. This is why it is named "Hornet." It sounds like a DT Swiss freehub. I am used to, and prefer, silent freewheels, which is the only reason I am selling it. The quick engagement is awesome.