These shifters and brake levers served me very well for many good rides, but recently the return spring for the right shifter broke and fell out, and I decided to upgrade my road bike to a 10 speed Campy set up. They were working well up to the point of the spring failure . The missing spring can be purchased on eBay for about 10 bucks, or you could use these to repair another set of shifters. Ergo power system compatible, these shifters are a 1999 model.