SHIMANO DEORE XT Rear Derailleur 2x12-speed

RD-M8120-SGS

RD-M8120-SGS

SHIMANO DEORE XT - Rear Derailleur - SHIMANO SHADOW RD+ - 2x12-speed

The all-new SHIMANO DEORE XT M8100 series of derailleurs brings a new level of drivetrain silence thank to decreased tension in the low gear position and an added bumper on the pulley cage. Larger 13T pulleys increase efficiency and chain management while compatibility with SHIMANO's new 12-speed cassettes boosts range.

  • Fast and precise shifting performance optimized to take on any trail
  • Faster and shockless shifting
  • HYPERGLIDE+
  • Extra wide range with front double 36-26T & close step 12-speed drivetrain with low sprocket combination -10-45T
  • Silent drivetrain in all gear positions
  • Decreased rear derailleur and chain tension in low gear
  • New bumper added to rear derailleur pulley cage
  • Bump Stopper
  • Bigger 13T pulley
  • Stable drivetrain on rough terrain
  • Low-profile design
  • SHIMANO SHADOW RD+

TECHNOLOGIES

PRODUCT SPECIFICATIONS

MODEL NO RD-M8120-SGS
SERIES DEORE XT M8100 Series
Color Series color
Average weight 290 g
   
B-Axle_Hollow axle
Compatible chain HG 12-speed
Direct attachment (Conventional)
Fluoric coated link bushings 4
Low sprocket_Max. 45T
Low sprocket_Min. 45T
Max. front difference 10T
Pulley_G pulley bearing Sealed Bearing
Pulley_Sunken type pulley bolt
Pulley_Teeth 13T
Pulley_T pulley bearing Sealed Bearing
Pulley cage SGS
Rear speeds 12, (Front double)
Top-Normal spring type_SHADOW RD+
Top sprocket_Max. 10T
Top sprocket_Min. 10T
Total capacity 45T

SERIES LINE-UP

  • Brake SHIMANO DEORE XT FLAT MOUNT Disc Brake Caliper
  • Bottom Bracket SHIMANO DEORE XT Threaded Bottom Bracket 68/73 mm shell width
  • Disc Brake Hose XTR Hydraulic Disc Brake Hose
  • Bottom Bracket SHIMANO DEORE XT Press-Fit Bottom Bracket 89.5/92 mm shell width

REPLACEMENT PARTS

  • Rear Derailleur Pulley Pully set (RD-M8100)