See how Shimano Ultegra R8100 FC-R8100 Crankset 2x12s HOLLOWTECH II 165mm 170mm 172.5mm 50-34T 52-36T For Road Bike Original Shimano combines innovation with practical design for modern users. Created with one goal: to make your tasks simpler and more productive. Join thousands of happy customers shopping at Almos.pl every day.