The system gives quick (.35 seconds) shifts with the ability to push the chain while 70% more power is still applied to the pedals. It is self-adjusting so the front cage is moved as the rear goes back and forth across the cogs. The battery needs recharging only about every 3000 miles or 90 days.
The group includes transmission components (crankset, bottom bracket, chainrings, chain, cluster and derailleurs), electronic shifting items (memory controller, battery pack, wiring and charger), combination brake handles / shifters and the brake calipers and pads. The price is about $4000!
On my short ride today, I shifted 63 times in 21 minutes, or an average of 3 times a minute, or every 20 seconds. That might be high on a long flat ride, but in the hilly terrain around my place, it seemed reasonable.
Guess what car I saw, down on the street - Yep, another Mustang convertible. Green/beige this time.
