microSHIFT Acolyte RD-M5185M-B SpringLock Rear Derailleur - 8 Speed Medium Cage BLK SpringLock Chain Retention MPFN-Y1RL98100 }Shimano Ultegra FC-R8100 Left Crank

}Shimano Ultegra FC-R8100 Left Crank Arm - 170mm Black

Model Icon Shape Round Grip Color Blood Marble Clamp Color Onyx Length 136mm Diameter 31

Rotor Size (mm) 140Pad Compatibility All Pad CompoundsRotor Type One PieceWeight 100Hub/Disc Compatibility 6-Bolt

Frame protection in high-wear areas (downtube main pivot seatstay and chainstay)

microSHIFT Acolyte RD-M5185M-B SpringLock Rear Derailleur - 8 Speed Medium Cage BLK SpringLock Chain Retention MPFN-Y1RL98100 }Shimano Ultegra FC-R8100 Left CrankmicroSHIFT Acolyte RD M5185M B SpringLock Rear Derailleur 8 Speed Medium Cage Black SpringLock Chain Retention. The heart of this microSHIFT Acolyte derailleur is the innovative SpringLock system. By pairing a customized linear rate high tension spring and a dual stage activation mechanism weve developed a system that can provide substantial chain security when you need it and can be turned off when you dont. To engage the clutch turn the engagement