A benchmark for quality components, Shimano Ultegra has the precision and performance of Dura-Ace (the out and out competition equipment range) but at a far more reasonable price.

SHIMANO ULT SL RD-6700GS REAR DERAILEUR LONG CAGE

SHIMANO ULT SL FD-6703F BZ-ON FRONT DERAILEUR, BRAZE ON TYPE

SHIMANO ULTEGRA-FC-6703 30X39X52X165 FRONT CRANK

SHIMANO ULTEGRA BR-6700 BRAKE CALIPERS 

SHIMANO ULTEGRA SL ST-6703 TPL BRAKE LEVERS & TRIPLE SHIFTERS (BRIFTERS) 

SHIMANO ULTEGRA CS-6700 12X27 CASSETTE SPROCKETS

SHIMANO ULTEGRA CN-6700 CHAIN