Shimano XT RD-M8100-SGS Rear Derailleur - 12-Speed fanny pack Dual L6-Snap Boas and a

Dual L6-Snap Boas and a Velcro forefoot closure ensure micro adjustable comfort with a secure fit designed for all day comfort and performance

Detects when you are breaking to emit a bright light alerting others you're stopping

Bones has proven that it's more than just another rear–mounted car rack

Approximate weight: 280g for a 1/2 pair size

Shimano XT RD-M8100-SGS Rear Derailleur - 12-Speed fanny pack Dual L6-Snap Boas and aDeore XT RD M8100 Rear Derailleur Offers fast and shockless shifting thanks to HYPERGLIDE+ technology The low profile design includes a bumper added to the derailleur pulley cage Shimano Shadow RD+ technology reduces chain slap and creates a quieter drivetrain Includes large 13t pulley Drivetrain is silent in all gear positions with decreased rear derailleur and chain tension in low gear Long cage is designed to be used with 1x12 drivetrain systems