EPO boosted Trek T1

Ah right! Izumi Super-Toughness are the big daddy of fixxie-skidder chains. It's the NJS track chain, so Keirin riders use it, and that NJS fixation has spilled over into street fixed gear stuff. In my experience, it's smooth, silent and the power transfer seems efficient*, definitely the best chain I've had on my skidder-bike

*the last one is absolute bollocks and I know it. The other two stand.

It makes the road feel much more like a keirin track.