Maxima V-Twin Synthetic Primary Oil - 1L

This is Maxima V-Twin Synthetic Primary Oil, a 1-liter bottle of full synthetic, ester-based gear oil specifically formulated for the primary chain cases and transmissions of high-performance V-Twin motorcycles. If you're working on a 1984 or newer Harley-Davidson model, especially one with a wet diaphragm spring clutch, this oil is designed to keep those critical components running smoothly.

What makes this oil stand out is its surface-active, oxidatively stable formulation. This means it maintains a consistent film thickness and viscosity, even when things get hot, which is crucial for protecting your primary chain and gears from wear, pitting, and spalling. You'll also notice improved clutch performance; this oil is made to ensure optimal engagement, prevent slippage, and minimize overall wear, which can also help extend the life of your primary chain by reducing stretch.