Computers and binary code aside, the pride and joy of Campagnolo's new Electronic Power Shift, or EPS, is the Record 11 EPS Rear Derailleur. It represents the vanguard of shifting technology, and is the result of twenty years of research and development by Campagnolo. Elegant, advanced, and precise, the Record 11 EPS Rear Derailleur is a benchmark in component innovation, and is already a must have for anyone seeking the best. Even Campagnolo naysayers will be drooling upon sight of the Record 11 EPS Rear Derailleur, proving that some things are worth the wait. Simply put, the Record 11 EPS Rear Derailleur is smart. It operates on an electronic actuator comprised of a gear motor and a built in resolver sensor. The actuator controls a worm screw, in the place of a mechanical spring screw, to move the derailleur. In turn, the actuator's resolver sensor is in constant communication with Digital Tech Intelligence, the brains of the system, charting every movement of the derailleur and positioning it optimally, relative to the cassette. The relationship between the electronic actuator and DTI brings an exciting new feature to EPS: Multi Shift Technology. The new Multi Shift enables a shift through all eleven cogs, up or down the cassette, in one compression of the shift lever, and in one and a half seconds. You read that right. To help alleviate the necessity for auto correction, Campy studied the detrimental effects of vibration on electronic components, and applied tin to the electronic actuator to reduce play. Going even further, Campagnolo engineers bolstered the strength and rigidity of the derailleur by creating a parallelogram carbon fiber derailleur cage with an alloy inner plate. The upper and lower bodies of the derailleur are coated in a techno polymer carbon fiber blend that is both functional and beautifully Campagnolo. The differences between Super Record and Record EPS rear derailleurs are minimal. The Record 11's rear derailleur has a solid parallelogr...