I use a 5" paint brush - very quick/easy/effective.
I prespray with Muck Off
I read about the paint brush somewhere - on TM I think?
When clean I air dry off excess with my Supa Dupa Garden Air blower - always an enjoyable job!! Lots of noise - and a great result!
I used to use a spoke brush but find them quite tricky to use and the metal core can cause damage.