Word forms: (regular plural) torsion bars
noun (Automotive engineering: Vehicle components, Brakes, steering, wheels, tires, and suspension) A torsion bar is a bar attached to a vehicle's suspension that absorbs energy by twisting. ⇒ Torsion bar front suspension systems are often used on four-wheel-drive trucks. ⇒ The car's basic torsion bar suspension was lowered to improve handling and a front anti-sway bar fitted. ⇒ Suspension is independent up front, with torsion bar springs and stabilizer bar.
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