X - Trial Racing Mountain Adventure is one of the Motorcycle Games that you can play on maths4kid.com for free. X-Trial Racing returns with Mountain Adventures! Quickly race against the clock as you drive up and down hills, do flips and avoid deadly traps as you race for the checkered flag. Finish each level fast enough to unlock all 3 stars. Memorize each level so that you can beat your previous time with each attempt. Try to beat all 30 levels and save all 90 stars in this epic online racing game.