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8 - IS46/34 dimensions are crafted to integrate flawlessly
The FiftyOne Sika is where precision engineering meets modern road performance
no matter your discipline
Fit & Setup TipsEnsure your freehub body is of the HG Spline road specification
Improved Aerodynamics: Streamlined design reduces drag
Shimano RD-M3100 Rear Derailleur Alivio Shadow 9-Speed Grips 8 - IS46/34 dimensions areSHIMANO ALIVIO Rear Derailleur SHIMANO SHADOW RD 9 speed The SHIMANO ALIVIO M3100 rear derailleur delivers a low profile design that lets you ride aggressively with fewer interruptions thanks to its SHIMANO SHADOW design. Low profile design Total capacity: 45T Max. low sprocket: 36T Adjustment barrel
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