Welcome Bob. I started in 1999 with a Raleigh R600 when I was 55 y/o.Why not stop by the Road Cycling forum or the 50+ forum (you're nearly 50 y/o) and ask your question. You'll get lots of good answers. Let us know what bike you get.
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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.