Red Line Synthetic Oil Heavyweight Suspension Fluid 30W – 16 fl oz. Part 91142 for Harley-Davidson and V-Twin Motorcycles

The Red Line Synthetic Oil Heavyweight Suspension Fluid 30W (Part 91142) is specially formulated for use in many Harley-Davidson® and American V-Twin motorcycle forks and rear shocks that have not been re-valved. This high-performance suspension fluid ensures smooth operation and enhances the longevity of your motorcycle’s suspension components. Its advanced synthetic formulation delivers superior shear stability, reducing the risk of fluid breakdown under demanding riding conditions. The fluid's excellent lubricity minimizes internal friction, contributing to a smoother ride and consistent damping performance. Designed to resist foaming and reduce operating temperatures, it helps maintain optimal shock absorber function even during prolonged use. The anti-wear properties of this suspension fluid extend the service life of your shocks, providing a reliable solution for maintaining ride quality and suspension integrity over time.

Features:

• Suitable for Harley-Davidson® and V-Twin motorcycle forks and rear shocks that have not been re-valved

• Superior shear stability to prevent fluid breakdown during operation

• Reduces fade and maintains damping performance under demanding conditions

• Minimizes foaming and operates at lower temperatures for consistent shock performance

• Excellent lubricity to support smooth motion and reduce internal wear

• Anti-wear formulation extends shock absorber lifespan