The Shimano 105 FC-5703 Road Crankset features HollowTech-II (HT2) technology. The bottom bracket spindle is integrated with the right crank for increased rigidity, while the left arm mounts to the splined spindle. It features:

• Teeth: 30/39/50
• Speed: 3×10 speed
• 7075 aluminum HyperGlide chainrings with shift ramps and pin
• Outboard, alloy bottom bracket bearing cups sold separately
• Hollowtech II design maximizes stiffness while keeping weight to a minimum