Ten years ago, speedfreaks were buying 600s in their thousands, runed on by their wallet-friendly mix of precision handling, insane engines and cutting-edge technology.
But many have fallen out of love with these pocket rockets and are getting their kicks elsewhere - even the manufacturers seem to have given up.
So what are the new 600s? Which bikes tick the boxes like those crazy old supersport machines used to?
To find out, we asked three MCN readers to try four alternatives to the dying supersport breed.
We put an Aprilia Tuono V4R, Ducati Streetfighter 848, Triumph Street Triple R and Suzuki GSX650F up against the latest Suzuki GSX-R600.