Because it has 4 wheels.
Quadricycle
Quadricycle in 1898
YES! Henry Ford invented the Quadricycle in 1896.
200$
No, it's a common noun, just like bicycle.
Yes there was.....
1896, the Quadricycle
It is a type of motorcycle with FOUR WHEELS. SuperSlasher
the quadricycle
The Quadricycle in 1896.
June 4, 1896
20 mph