noun
tandem; riding with a passenger on a motorcycle
Commonly used for two people riding on one motorcycle or bicycle, or for things arranged one behind the other.
彼は彼女をタンデムに乗せてツーリングに出かけた。
He took her on the back of his motorcycle and went touring.
タンデム自転車で公園を一周し
We rode a tandem bicycle around the park.