microSHIFT Mountain Pull Thumb Shifter Mount Left Model=R539 Front Derailleur }RockShox Rear Shock Damper Body

}RockShox Rear Shock Damper Body - Standard Eyelet 45mm w/ Hydraulic Bottom Out Super Deluxe C1+ (2023+)

Tightly spaced center knobs minimize rolling resistance

Tooth Count 33 Ring Position/Type Middle Drivetrain Speeds 10 Chainring BCD 104 Color Black Defined Color Black Material Aluminum

Compatible with Shimano Di2 E-tube EW-SD300 wires

microSHIFT Mountain Pull Thumb Shifter Mount Left Model=R539 Front Derailleur }RockShox Rear Shock Damper BodymicroSHIFT Mountain Pull Thumb Shifter Mount Left. Replacement microSHIFT thumb shifter mounts allow you to replace broken units or convert microSHIFT bar end shifters to thumb lever mount for flat bar compatibility.