My commute is 30 miles RT. I like old steel touring bikes for comfort and versatility. I hop curbs, ride on grass, dirt gravel etc.
Below are my commuter bikes:
1972 Paramount P-15
1973 Schwinn World Voyageur w/ Nexus 8 & Generator hub
1981 Trek 710
After doing my commute on a flat bar, mountain style bike, switching to a road/touring bike was a revelation. I would never go back. Drop bars forever!!!!

(Or moustache!) I also use Jandd Expedition racks as they are very long and allow me to slide my panniers back and out of the way to avoid heel strike. I have size 12 feet. I was also able to get a matching Jandd rack in silver for the Schwinn.
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