According to the manga that I've read in JOJO part 7.
The Spin (回転, Kaiten, literally "rotation")is a supernatural phenomenon wielded by Gyro Zeppeli and Johnny Joestar and featured in Steel Ball Run. It is a state of perfect or near-perfect rotation which produces a unique form of energy that can be applied for a multitude of uses. The Spin may be considered a counterpart to the Ripplepower featured in the original timeline.
Description
The Spin is a state of rotation defined by its closeness to perfection, that perfection being the Golden Rectangle(黄金長方形, Ōgon Chōhōkei), more specifically the Golden Spiral that is derived from the Rectangle, a mathematically endless spiral and a feature said to be omnipresent in the surrounding nature and a fortiori in works of arts[1]. Unlike the average rotation, the Spin is persistent and produces more rotational energy[1] than it takes to create. That rotational energy is transferred to nearby objects in the form of vibrations[2] and can be wielded for a wide array of purposes.