Kamen Rider V3, also referred as Kamen Rider 3, is equipped with Double Typhoon that symbolizes the skill of Rider 1 and the power of Rider 2, the windmills in the center of the belt rotates with a pose that combines the transformation pose of the Double Riders and the shout of "Henshin! V3!". By absorbing wind power, it is converted and stored as energy by the Energy Converter beside the belt, supplied through Artificial Muscles, activates each function, and the transformation is completed. The time required for transformation is 4 seconds. However, in Episodes 1 and 2, the action of crossing hands in front of the chest was added after posing. At the beginning of the battle, make a "V" and "3" with the left and right fingertips, respectively, with the right forearm standing perpendicular to the ground and the back of the right hand facing the enemy, the left forearm against the right elbow and the left forearm horizontal in front of the chest. It was customary to assemble in a unique fighting pose to create a line that intersects 90 degrees between the left and right forearms.

The origin of the name is "V" which means "Victory" and "3" as Rider 3.