SHIMANO DEORE XT Rear Derailleur 1x12-speed

RD-M8100-SGS

RD-M8100-SGS

SHIMANO DEORE XT - Rear Derailleur - SHIMANO SHADOW RD+ - 1x12-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+
  • Wide range 12-speed drivetrain with low sprocket combination -10-51T
  • 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-M8100-SGS
SERIES SHIMANO DEORE XT M8100 Series
Color Series color
Average weight 284 g
   
B-Axle_Hollow axle
Compatible chain HG 12-speed
Direct attachment (Conventional)
Fluoric coated link bushings 4
Low sprocket_Max. 51T
Low sprocket_Min. 51T
Max. front difference 0T
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
Top-Normal Spring Type SHIMANO SHADOW RD+
Top sprocket_Max. 10T
Top sprocket_Min. 10T
Total capacity 41T

SERIES LINE-UP

  • Thru Axle SHIMANO 142x12 mm E-THRU 166 mm Axle MTB Rear
  • Thru Axle SHIMANO 148x12 mm E-THRU 172 mm Axle MTB Rear
  • FREEHUB SHIMANO DEORE XT Rear FREEHUB 157x12 mm E-THRU Axle 12-speed
  • Thru Axle SHIMANO 157x12 mm E-THRU Axle MTB Rear

REPLACEMENT PARTS

  • Rear Derailleur Pulley Pully set (RD-M8100)