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The Shimano R7100 crankset from the 105 groupset is the first 12-speed option for beginner cyclists, combining features from the top-tier Ultegra and Dura-Ace models. The 105 crankset offers lightweight, excellent build quality, and high accuracy in performance under all conditions, providing great riding enjoyment and the ability to stay fully focused during training.
This crankset matches the performance of high-end components used by professional cyclists, efficiently transmitting power due to its high torsional stiffness.
The technologies applied include integration of the arm and bottom bracket, which increases torsional stiffness while maintaining low weight. The placement of bearings further apart enhances stiffness and effectively transmits pedal force. The bearings operate with high precision, are easy to install, and have low maintenance costs.
The Hollowtech II technology focuses on creating the perfect crankset that maximizes power transfer from the rider. The torsional stiffness of the crankset ensures efficient pedaling, while its weight—a key factor—supports longer rides requiring sustained pedaling.
Shimano aims to achieve the ideal balance between torsional stiffness and minimal weight of the crankset. The Hollowtech technology is applied to an ultra-light hollow crank arm created using Shimano's proprietary forging technology, ensuring torsional stiffness. Adding Hollowtech II technology integrates the bottom bracket axle with the correct arm to achieve both torsional rigidity and low weight, thus offering the right balance.
An ultra-lightweight crankset not only reduces the bicycle's weight but also the rotational mass, leading to quicker acceleration. The challenge is to reduce the weight of the crank arm while maintaining durability and stiffness. Shimano's advanced forging technology adequately addresses this with the Hollowtech arm, which offers exceptional durability and stiffness while keeping weight low.
Specifications are collected from official manufacturer websites. Please verify the specifications before proceeding with your final purchase. If you notice any problem you can report it here.
