Product details:

Cycle Care Formula 1 is a safe and biodegradable product; just as safe as water on a variety of surfaces, such as chrome and aluminum. Specifically formulated non-corrosive cleaner that safely dissolves brake dust, road grime, tar, grease, etc. from tires and wheels (agitation required in extremely neglected situations). Spray Formula 1 on whitewall tires and scrub with a tire brush for brilliant white results. Cleans but will not dull powder-coated engines. 1 gallon. Made in the USA.