AT-X (short for "Anime Theater X") is a Japanese subscription channel, known for running uncensored versions of anime such as Fight Ippatsu! Jūden-chan!!, Girls Bravo, and Mahoromatic. This week, it featured an uncensored version of Oreimo, featuring a bicycle, with the vehicle in question being a racy itachari (bike equivalent of an itasha) adorned with fictional anime character StardustWitch Meruru.
From Oreimo 2's 10th episode...
How much do you want to bet that they start selling replicas of those wheel covers?