Shimano 105 FC-R7100 Hollowtech II Crankset 2x12-Speed HTII 172,5 mm 50/34T without Bottom Bracket

An attractive aluminum crank with hollow arms for lightweight, rigidity, and durability.The newly designed crank arms offer an optimized balance between lightweight and efficiency. The crank, formed with hollow aluminum technology, is anodized with a beautiful gloss black anodized finish, giving it a luxurious look. The resin ribs on the back of the chainrings are SHIMANO 105's unique structural design that achieves both thorough weight reduction and crisp shifting performance.FEATURESOptimal balance of stiffness, strength, weight and rotational performanceHOLLOWTECH II structure cuts weight yet maintains strength for better power transferTechnologiesHOLLOWTECH IIProviding the best balance of stiffness, strength, weight and rotating performance.The concept of HOLLOWTECH II technology is focused on producing a superior crankset which will maximize a rider’s power transfer. The rigidity of the crankset ensures pedaling efficiency while its weight, a key element of the crankset, you want light, aids in cycling longer distances over which the rider needs to pedal more.Naturally, SHIMANO strove for the optimum balance between the conflicting needs of stiffness while producing a lightweight crank. HOLLOWTECH technology is an ultra-lightweight hollow crankarm created by SHIMANO with the company’s own proprietary forging technology that also maintains rigidity.The HOLLOWTECH II crankset has been developed by pursuing the optimum balance of stiffness and rotating performance in a
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