microSHIFT Acolyte RD-M5185M-B SpringLock Rear Derailleur - 8 Speed, Medium Cage, Black, SpringLock Chain Retention Frame Protectors which avoids undesired scratches to

which avoids undesired scratches to the rim

UPC: 821973451152

and a 10 year warranty

Raised top fin profile prevents the chain from dropping to the BB shell

UPC: 4717784026152

microSHIFT Acolyte RD-M5185M-B SpringLock Rear Derailleur - 8 Speed, Medium Cage, Black, SpringLock Chain Retention Frame Protectors which avoids undesired scratches toThe 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 bolt clockwise until it clicks. Theres no way to overtighten the bolt. To disengage the clutch for wheel