Shimano Tiagra 4700 Crankset - 50/34
And there are few places you're more likely to notice that than in the redesigned crank. Shimano ditches the old non-series look of the previous crank for the new 4-arm design shared by Dura-Ace, Ultegra and 105. The new design is not only stiffer and lighter, but also provides much better shifting performance than previously, thanks to a redesigned set of ramps and pins to shuttle the chain from the big ring to the small ring more precisely and with less effort. The 4-arm design also lets you be more selective with you gearing choices, letting you run everything from 46/34 cyclocross gearing to 53/39 race gearing on the same crankset. The crankset comes with 50/34 compact chainrings that provide plenty of oomph in the big ring, while also makes hills more manageable.