Open Box – Shimano 105 FC-R7100 12sp Crankset 170mm 50-34t

Open Box Item: This product is sold as an open-box item. It may have been removed from a bicycle prior to use. Original packaging may be missing or incomplete. Minor cosmetic blemishes may be present. The product is in full functioning order.

The Shimano 105 FC-R7100 is a 12-speed road crankset built around HOLLOWGLIDE hollow aluminum construction. The hollow crank arms cut weight while preserving the stiffness needed for efficient power transfer, finished with a gloss black anodized coating. This listing is for the 170mm arm length in a 50-34T chainring combination.

The chainrings incorporate resin ribs on their back face, a structural choice that reduces mass while maintaining crisp front shifting. A Q-factor of 148mm produces a narrow stance consistent with road geometry. The compact 50-34T gearing covers climbing and flat terrain without requiring a front derailleur adjustment across most road builds.

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