Shimano RD-R7100 105 12-speed Rear Derailleur

It looks and feels premium.Engineered using SHIMANO’s exclusive HYPERGLIDE shifting technology, you can enjoy smooth effortless gear changes at high speed – under your own steam. Precise and pure.12-speed 105 wide link rear derailleurWide Link design increases rigidity and shifting performanceSuper stiff for fast and accurate changes across the cassetteLarge 11 tooth pulleys increase service life and reduce noiseSuper light shift actionCompatible with 12-speed drivetrainsMinimum low sprocket 34T, maximum low sprocket 36T with double chainsetMaximum front difference 16T, total capacity 41TAverage weight 249 grams