New Departure Model D Coaster Brake Overview
I tend to do most of my work on the weekends, but I do slip a little bit in here and there after work during the week. It seems the mosquitoes like it when I work late too. They make as good an assistant as any, seeing as the purpose of an assistant is get in your way 90% of the time.
When you pedal backwards, a threaded driver pushes together a set of metal discs, creating friction and slowing the back wheel down. As long as you pedal/push in reverse, the brakes are applied. Of course, you can pedal forward and coast when you want to as well. All of the parts are inside the hub of the wheel, so they are impervious to weather.
As the brake gets used, the discs that rub together get worn, eventually crack, and then need replacing. This time around I had no broken ones, but plenty of wear. I have some replacement discs around, so I figure it's time to replace the old ones. The new ones are pictured below.
With the new brake discs in and fresh oil, the hub is reassembled. I will perform a final adjustment this week/weekend. I am also doing some cosmetic work on the bicycle, which will be described in another post. Unlike most other 60-65 year olds in the DC area, no Botox will be used.