While watching Seinfeld last night I saw that the green bike hanging by his bathroom was a Klein. I’m not sure why I haven’t noticed that before. However, I found out that the bike hanging on Jerry’s wall is actually Michael Richard’s (Kramer) bike. Jerry doesn’t ride. Here is what Faqs.org has to say about Seinfeld’s bike:

• In the first season, the bike was a green Klein, but somehow, the
  fork seemed to be on backward.
• Cannondale Super Killer V appeared in one episode in the second
  season, but was later rumored to be stolen.
• The green Klein is back with the fork mounted the right way.

Keep Reading.