Tokyo has a whole sub-culture around fixed gear bikes. This one will incur the wrath of the Police who are currently stopping ones without at least one brake. Given it is also a little loud on the colour front, it might get spotted quite easily.
Nelly, Bucky, and Henry start a business selling bikes that Bucky finds. Nelly soon discovers that Bucky has been stealing the bikes from stores, so Nelly and Henry leave the bikes in the woods so that they wouldn't be tied to the theft.