

Koch Chemie Wheel Brush Set Wool — 2-Piece Soft Wool Brush Kit for Sensitive Wheels
The Koch Chemie Wheel Brush Set Wool is a two-piece kit built around one principle: the safest possible mechanical agitation for the most sensitive wheel finishes. Where stiff nylon or PET bristles can mar polished lips, gloss-black, chrome and ceramic-coated wheels under load, soft wool fibres glide across the surface — lifting iron particles, brake dust and road film without leaving micro-marring behind.
The set includes two sizes. The larger brush handles barrels, inner rims and wide spoke faces. The smaller brush gets into tight spoke gaps, behind calipers, and around lug bolts. Both feature a flexible rod and a non-slip ergonomic handle, so you can work the inside of a barrel without forcing the wool against the wheel edge.
Wool fibres are also far more absorbent than synthetic bristles — wool can hold around 30% of its own weight in liquid. That means your wheel cleaner stays in contact with the substrate longer, the chemistry does more of the work, and you need less mechanical pressure to lift contamination. Both brushes are chemical-resistant and compatible with the full Koch Chemie wheel-cleaner range, from Magic Wheel Cleaner (acid-free) to Reactive Rust Remover (pH-neutral iron remover).
Built for: high-gloss black, polished aluminium, chrome, ceramic-coated wheels, and any finish where a traditional bristle brush is a risk.
What's in the set: 1× large wool brush, 1× small wool brush. Article No. 9998439.
Aftercare: rinse thoroughly after each use and air-dry with the bristles facing down. Avoid leaving the wool soaking in concentrated chemicals between uses — it preserves the fibre and the bond between the wool and the shaft.

