Deore RD-M5100-SGS Ultegra Di2 you need the adapter SM-MA-F203P/PA

you need the adapter SM-MA-F203P/PA (Bike24 ID: SHI103313)Designed for BR-M985 and BR-M988

Adds stability to your training ride

Skewers Included: Yes

The Brooks extended 10-year guarantee on all our leather saddles is founded on the quality and consistency of materials and the exceptional work of our craftspeople

Length (cm) : 58

Deore RD-M5100-SGS Ultegra Di2 you need the adapter SM-MA-F203P/PAUtilizing the SHIMANO SHADOW RD+ design, the SHIMANO DEORE M5100 rear derailleur delivers consistent MTB shifting performance over rough terrain. The low profile design avoids damage from rocks whiles SHIMANO's chain stabilizing technology reduces chain drop and makes for a quiet drivetrain in all gear positions. 1x11 speed SHIMANO SHADOW RD+ rear derailleur Stable drivetrain on the trail Low profile design avoids damage from rocks Chain stabilizer