Testing the Tread

A commuter bicycle was locked to a round steel post right along the curb. I walked over from the ledge to take a look at the lower assembly. The bottom pedal sat just above the asphalt, angled flat. I grabbed the grooved edge with both hands and pushed downward to test the resistance. The crank arm rotated backward with a clean, muffled click from the rear hub. I gave it one more firm spin to watch the chain teeth catch and roll across the sprocket. Solid engineering, smooth glide.