I took my 6 week old Cube back for a retailer safety check, they asked was everything okay, I replied that wasn't really happy with the brakes they didn't seem as good as my last bike & occasionally there was a bit of a creaking noise. hilst wandering around the store the manager came over & asked how I cleaned the bike, my reply was "You've seen the state of it, you think I clean it?, no seriously I just use a watering can why?"
He went on to explain the bottom headset bearing already had rust on it & they wanted to know if I had used a pressure washer. They replaced the bearing & used a silicone grease.