Dirt Bike 4是一款赛车游戏。您可以在浏览器中免费播放Dirt Bike 4。尽可能快地完成所有轨道，而不会掉下自行车。完成部分的速度越快，您得分就越高。 Dirt Bike 4可能是最困难的赛车游戏。用箭头键控制自行车。使用空格键重新启动一个级别。
Enable Flash in Chrome settings. When Flash is disabled, the label will read " Block sites from running Flash ".Click the toggle to enable flash and the label will read " Ask First ". Shown like the following:
Now Click And then,click " Allow " in the box that appears in the top-left to play the game.Shown like the following:
