Okayama 2004 Subway Jam Posted on August 23, 2020 by Effraim — 1 Comment ↓ A contest/jam in a subway? Grassroots Japan is the best, let’s go back to Okayama in 2004 featuring Yohei Uchino (That xft ride into crackpacker turbine at 1:58!), Akira Okamura and another rider I can’t get ID. Love this kind of footage.