Shimano
The Shimano 105 FC‑R7100 crankset is a road‑bike component featuring a 2×12 drivetrain, 34T chainring, and Shimano Hollowtech II axle. It supports electronic Di2 shifting, comes in multiple crank lengths including 170 mm, and weighs 754 g.
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The Shimano 105 FC‑R7100 crankset is designed for road bicycles and integrates the proven Hollowtech II bottom‑bracket system, delivering a rigid yet lightweight connection between the crank arms and the frame. It offers a 2‑chainring configuration with a 34‑tooth inner ring, optimized for a wide range of terrain. The crank arms are available in several lengths—160 mm, 165 mm, 170 mm, 172.5 mm, and 175 mm—allowing riders to match their fit preferences. Weighing 754 g, the unit balances low mass with durability, using aluminium construction for both arms and chainrings. Compatibility extends to Shimano Dura‑Ace, Shimano Ultegra, and SRAM Level groupsets, and the crankset is ready for electronic Di2 shifting, providing precise gear changes. The model aligns with Shimano's 2026 road component lineup and is suitable for riders seeking a high‑performance, versatile crankset without additional accessories.
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