Unsprung weight

In a motorcycle with suspension, the unsprung weight (or, more properly, the unsprung mass) is the mass of the suspension, wheels or tracks (as applicable), and other components directly connected to them, rather than supported by the suspension. (The mass of the body and other components supported by the suspension is the sprung mass.)

Common parts included in unsprung weight

• Wheels
• Tires
• Brakes
• Fork sliders
• Front fender