The Veritate wheels on my Superb have limited access between the spokes, so cleaning the barrel and behind the spokes is a chore but possible with the right selection of brushes and woolies. BUT ... the numbnuts that designed the wheel added a 'gutter' around the barrel just behind the spokes. It collects a pool of rainwater when parked and is a magnet for brake dust and tar. Getting into the gutter to clean it is almost impossible - I can't even reach it all with my fingertips and a wheel mitt. Lots of chemicals and a pressure rinse helps, but sometimes you also need to agitate the dirt to get it off. The usual angled wheel brushes and floss/weasels won't get into the gutter, so I'm faced with making some sort of DIY tool to get into the gaps or removing the wheel completely to get at it from behind. Does anyone have any tips or tool recommendations for how to tackle this?