The Machine Den-Bird (マシンデンバード Mashin Denbādo) is Kamen Rider Den-O's bike that is able to launch from the Den-Liner. Although Ryotaro Nogami never uses it as a mean of transportation, the Taros would sometimes use it while possessing his body. While docked in the Den-Liner, it serves as the control mechanism for the train. When a Rider Pass, along with a Rider Ticket, is inserted into the Den-Bird while it is docked in the Den-Liner, the date on the ticket becomes Den-Liner's destination. During the fight with the Oct Imagin, the bike is sabotaged by the enemy and turns against Den-O. Though it burst into flames, the Den-Bird was later repaired or replaced fast enough to be used against the rampaging time-tracks under the control of the Oct Imagin's remains.