CAMPAGNOLO FD19-SR12BEPS S RECORD EPS 12sNew internal and external cage constructed of carbon fiber and aluminum tailor made for EPS Automatic repositioning, D. T. I. technology means that the EPS system knows the rear derailleur position and the selected sprocket at all times With the `Magnetic Hall Sensor Resolver`, the front derailleur always moves the chain automatically into the ideal position for the selected sprocket chainring Front derailleur body in monolithic carbon fiber for low