Yesterday I took the day off from bicycling to go to the March for Our Lives in DC. We drove and took Metro for a number of reasons and it worked out remarkably well.
Today, I got back in the saddle with an old friend, Little Nellie. Little Nellie is my Bike Friday New World Tourist. She has a hair over 19,000 miles on her. I recently put a new large chainring, cassette, rear wheel, rear tire, rear tube, and chain on her.
Errand No. 5: Non-store Errand, a test ride to make sure all the new stuff was working properly.
Destination: Around the neighborhood
Observation: I was half expecting my rear tire to explode because it was so hard to install and the wire bead was slightly bent. So I rode over a couple of potholes to stress it. To my chagrin, I found that the shifting was messed up. The chain was jumping over the big sprocket and getting jammed between the cassette and the spokes. On the opposite end of the cassette, the chain was making unpleasant noises. Be careful what you wish for; you might end up with something worse.
So the first errand resulted in a second errand.
Errand No. 6: Store
Destination: Spokes Etc. At Belle View, my local bike shop
Observation: If I ever move, I will make sure I have a good local bike shop nearby. Spokes has been my go to shop for over 25 years. More often than not (like today, for instance), they do minor repairs while you wait. The Spokes mechanic (Sean, I think) figured out what was wrong within seconds. The new hub of my rear wheel is sized for an 11-speed cassette. My cassette has only nine speeds. He installed a proper spacer and tweaked things a little. In five minutes I was on the road again. Bicycles are so much more fun when they are in proper working order.

The fix was so good that I took off and rode another 16 1/2 miles for a total of 24. Total miles so far in the Errandonnee: 58 1/2
Glad to hear the problem was fixed quickly and correctly. It is definitely awesome when you have a bike shop you like.
It sucks to have one new thing cascade into many small issues BUT its great that your LBS can sort your bike out so quickly, I mostly do my own wrenching (pre-1985 tech only!) but when I need help I am grateful for a competent shop