I'm 59 and commute by bike 4-5 days a week. You can see pictures of my bikes at the bottom of this post.
Here are a few links to older pictures of my commuter bike (from past years) set up for fall/winter riding (shorter days - less daylight). Since shorter days are right around the corner, I'll be installing the headlights again very soon.
http://home.mindspring.com/~rhorne/Raleigh1.jpg
http://home.mindspring.com/~rhorne/Raleigh2.jpg
FYI: My commute was 14.3 miles one way when I started commuting in 2001. I now have a new job and the commute is only 8.4 miles one way.
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The Lord is merciful and gracious, slow to anger and abounding in steadfast love. - Psalm 103:8
I am a cyclist. I am not the fastest or the fittest. But I will get to where I'm going with a smile on my face.