Joined: Jan 2009
Posts: 44,340
Likes: 6,640
From: New York, NY, and High Falls, NY, USA
Bikes: 1962 Rudge Sports, 1971 Raleigh Super Course, 1971 Raleigh Pro Track, 1974 Raleigh International, 1975 Viscount Fixie, 1982 McLean, 1996 Lemond (Ti), 2002 Burley Zydeco tandem
Amazon has the Schwinn computers, too. I hear the bracket can let the computer fall out, though. I haven't tried it myself, though. I have one still sealed in its package.
I don't know how waterproof the no-name unit is.
The patent on the chip behind these must have worn out. Anyone can make a bike computer nowadays. That's why you can get them so cheap. I don't know why I'd pay more than $15 for a basic computer. At my LBS, they are $40, minimum.