FSA K Force Track 1X Crankset with MegaEVO Bottom Bracket (Formerly Vision Track) Saddle The SHIMANO ULTEGRA R8000 series The SHIMANO ULTEGRA R8000 series front derailleur offer lighter front shifting operation and easier setup thanks to the new link construction and integrated cable tensioner 5 73 R 47 47 47 47 47 C 440 440 440 440 440 F 580 587 595 606 617 WB 1010 1017 1025 1037 1047 E 71 70 70 70 70 Fork 382 382 382 382 382 St The crankset features solid forged 6061 alloy arms paired with an ultra stiff forged 7050 30mm spindle for maximum power transfer and durability Rigid aero arms and a specialized dish spider configuration handle steep velodrome banking and high speed track demands