Shimano Saint RD-M820-SS1 Rear Derailleur - 10 Speed Short Cage Black Model=Active Line Covers Medium thickness padding eliminates pressure

Medium thickness padding eliminates pressure points in the sit bone area and provides lasting comfort for long rides

Compound Organic Heat Sink Yes Backing Plate Material Aluminum Pad Shape Number 62 Designed for ebike Yes

Rotor not included

}Shimano XT FC-M8100 Left Crank Arm - 170mm

Shimano Saint RD-M820-SS1 Rear Derailleur - 10 Speed Short Cage Black Model=Active Line Covers Medium thickness padding eliminates pressureShimano Saint RD M820 SS1 Rear Derailleur 10 Speed Short Cage Black. Shimano Saint RD M820 Rear DerailleursShadow+ chain stabilizer provides a simple lightweight chain control solution Mode Converter allows the derailleur to track different type of cogsets DH mode is a close ratio mode to track up to a 23T 28T low gear AM mode is optimized for a wider ratio cogset with a 32T 34T low gear TECH SPECS Largest Cog 36 Color Black Rear Der Shifter