Check out this awesome Japanese Keirin Flash video game. To play the game, click on LINEMASTER, then ENTER, then click on the orange Keirin racer and then choose your racer (red seems good). Move using the arrow keys and pedal by pushing (mashing) the space bar. in the first few laps behind the pace bike you got to stay in the allocated position, then on the last lap mash the key board to sprint and stay in the slipstream to conserve energy (energy bar on the right of screen). This is how I've been doing me sprint training - go the inside line! FS
Found @ Ride the Black Line