Keep Your Rotors Spinning Smoothly

Yamaha's YACROX Synthetic Rotor Oil is the factory-recommended lubricant for French horn, tuba, and other rotary valve instruments. Formulated specifically for the tight tolerances of rotary valve mechanisms, YAC-ROX keeps your action fast, quiet, and consistent — whether you're warming up in the practice room or performing on stage.

Why Musicians Trust YACROX

• Synthetic formula resists breakdown and evaporation longer than petroleum-based oils
• Reduces friction for a lighter, more responsive rotor action
• Won't gum up or leave residue that slows valves over time
• Yamaha factory-recommended — the same oil used during instrument assembly and setup
• Compatible with most rotary valve brass instruments

A Small Investment, A Big Difference

Neglected rotors get sluggish, sticky, and noisy. A few drops of YACROX on a regular maintenance schedule keeps your instrument playing like new and protects the precision-machined surfaces inside your valves. It's one of the easiest — and most affordable — ways to extend the life of your horn.