I was there two weeks, but never rode a bicycle. We saw lots of people riding bikes everywhere. I saw only a couple of road bikes. The rest were utilitarian city bikes. Most had the butterfly trekking handlebars . Most were derailleur shift with around 21 speeds. There were a few coaster brake bikes. Quite a few had internally geared hubs, mostly three speeds. Most had generator powered lights. Some were generator hubs. Just about all of the components were Shimano.
We were driving from place to place with a rental car visiting friends. The GPS was invaluable.
I met a German who is training for a half marathon. He had just lost about 40 pounds and looked very trim. He spoke very highly of using a heart rate monitor for weight loss and for conditioning. So, I went to Wal-Mart last evening and bought a MIO Sport HRM watch for less than $30. It seems to work very well, but it is very difficult to take a reading while riding. Firmly grasping the handlebars or pressing against anything with the hand on the arm wearing the watch results in no reading. Already I learned I have probably been riding too hard and need to be more patient about my progress.