The Shimano 105 5800 crankset is barely distinguishable from the Ultegra 6800 crankset. The hollow-forged arms and chainrings ensure a stiff and lightweight crank, and thanks to its innovative 4-arm mount every chainring combination will fit on this crank. For example during a vacation in the mountains you can mount a 50-34 and once back home, you can mount a 53-39.
The Shimano 105 group offers many technological improvements. If you're interested in a value for money product, this is the perfect group for you: A no-nonsense, reliable, durable and high-performance group with an attractive design.