Won't Miss #83 - squealing bicycle brakes

There's a particular type of bicycle in Japan which is marketed toward housewives. It's a cheap, but serviceable model which is sold new for between $80-120 (8,000-12,000 yen). This type of bike is called a "mama chari". That's "mama" for "mother" and "chari" is supposed to be the sound the bells on those bikes make. These bikes seem to have a common problem in that their brakes squeal horribly