Maxima 59901-5

The Maxima 59901-5 is the official manufacturer part number for Maxima Racing Fork Fluid (5wt / 85/150 Grade) packaged in a 1-liter (33.8 oz) bottle. It is a professional-grade, mineral-based suspension fluid engineered specifically for high-performance motorcycle, ATV, and powersports front forks.

Key Specifications & Features

• Viscosity & Grade: 5wt (featuring an 85/150 viscosity index rating), providing a lighter weight option optimized for quick, responsive rebound and a plush small-bump compliance.

• System Compatibility: Designed for both modern high-performance cartridge forks and standard-type/traditional front suspension systems (fully compatible with upside-down/inverted forks found on motocross, off-road, and street builds).

• Zero-Drag / Anti-Stiction Formula: Utilizes an advanced proprietary additive system that drastically reduces running friction and eliminates stiction, ensuring smooth, consistent fork travel.

• Shear-Stable & Fade-Resistant: High viscosity index formulation maintains consistent damping performance and film strength across wide operating temperatures, preventing thinning under heavy race conditions.

• Anti-Foam & Aeration Control: Contains specialized anti-foam agents that minimize air entrainment and cavitation, maintaining predictable, reliable damping behavior through aggressive stutter bumps and whoops.

• Internal Protection: Formulated with top-tier anti-wear chemistry alongside rust, oxidation, and corrosion inhibitors that protect internal metal components while conditioning fork seals to prevent leaks.