Shimano tiagra 4700 uses shimano dura ace ultegra and 105 to set a new benchmark for quality no longer using the thumb shift method it has been adapted to use the more common lever shift system as seen on shimano 105 shifters the look is similar to the ultegra and the smooth shifting has used some of the dura ace system parts a true mixture of already proven products to make a quality shifter 10 speed