Utilizing 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. Details: CAGE LENGTH SGS/Long TOTAL CAPACITY 40 MAX FRONT DIFFERENCE 0 COLOR SERIES COLOR MOUNT Direct attachment (conventional) NUMBER OF PULLEY TEETH 13 SERIES Deore GENERATION M5100 MAX LOW SPROCKET 51 MIN LOW SPROCKET 51 TOP NORMAL SPRING TYPE Shimano Shadow RD+ REAR SPEEDS 11 WEIGHT 360 grams Shimano Deore Compatibility: