Oxford offers a wide range of brushes for specialised usage, of which this one is probably the most versatile. With twice the number of bristles of other brushes, it certainly cleans well. You can apply quite a bit of force to the sturdy, ergonomic handle too.
The long brush head has a long reach and the durable, sturdy nylon bristles do the rest. When there are hard to reach surfaces, rubber elements are provided to prevent damage to the surrounding areas.
It seems a bit obvious, but just for completeness: be careful with painted surfaces! Hard nylon bristles and paint don't usually go well together.
Like all Oxford brushes, the use of this one is not limited to motorcycles: bikes, cars, trailers, caravans, feel free to go crazy.