Shimano 6-12 Speed Rear Derailleurs Option:12 Speed for 2x12 Sense amplifier: The Sense Amplifier

Sense amplifier: The Sense Amplifier makes you feel progressivity and precision at the beginning of every turn while providing unmatched rebound effect

multi-tool

LINER:  My Custom Fit 3D seamless perf

and store the chinbar

Shimano 6-12 Speed Rear Derailleurs Option:12 Speed for 2x12 Sense amplifier: The Sense AmplifierDEORE XT Di2 RD M8050 GS (Medium Cage Length) ,11 SPEED, TOP NORMAL SHADOW PLUS DESIGN, DIRECT ATTACHMENT (DIRECT MOUNT COMPATIBLE) Perfectly suited to a wide variety of MTB applications, the M8050 DI2 version offers the digital precision of SHIMANO electronic shifting. Accurate and stable shifting in any condition Instant response Customized shift speed within Multi shift Powerful shifting Seamless gear change even under high load Smart and efficient