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Shimano Deore XT

Shimano Deore XT RD-M8120 XT 12-speed rear derailleur; Shadow+ SGS double

SKU RDM8120SGS
£84.99 RRP £109.99 −22%

Earn 84 points with Bikeparts+ to spend on your next orderHow it works

  • XT Shadow plus 12-speed double rear derailleur for the ultimate in shifting performance and durability
  • Shadow plus features a super low profile design and optimized slant angle for super light shifting action
  • Shadow Plus uses a chain stabilising switch that when on will reduce chain bounce in rough terrain maintaining more stable drive and shifting
  • Single tension spring prevents contact with the chainstay resulting in a silent ride
  • Rubber bumper on pulley cage for added silent drive
  • 13T pulleys and decreased derailleur tension prevent high chain tension in low gears
  • Direct cable routing prevents snagging from any trail side hazards
  • Full carbon fibre outer pulley cage saves weight while alloy inner cage increases rigidity
  • Cold forged wide alloy links and pivot body
  • Four fluorine-coated link pin bushings
  • Strong return spring for a positive shifting feel
  • Specifically designed to work with XTR M9100 12-speed double drivetrains
  • Durable sealed 13T bearing pulleys for low friction
  • Top normal spring uses the spring to select higher gears
  • Max front difference 10T
  • Max low sprocket: 45T (2x 12-speed)
  • 45T capacity SGS cage
  • Average weight 290g

Same groupset

Complete your Shimano Deore XT groupset

Shop all Deore XT →
Shifter
Shimano Deore XT SL-M8100-R Deore XT shift lever; band on; 12-speed; right hand BIKEPARTS+
One size
Shimano Deore XT
Shimano Deore XT SL-M8100-R Deore XT shift lever; band on; 12-speed; right hand£50.99£59.99−15%
Chainset
Shimano Deore XT FC-M8120 XT Crank set without ring, 12-speed, 55 mm chainline BIKEPARTS+
One size
Shimano Deore XT
Shimano Deore XT FC-M8120 XT Crank set without ring, 12-speed, 55 mm chainline£118.74£149.99−21%
Cassettes
Shimano Deore XT CS-M8200 XT 12-speed cassette 10 - 51T BIKEPARTS+
Select size
1 size
Shimano Deore XT
Shimano Deore XT CS-M8200 XT 12-speed cassette 10 - 51T£96.99£154.99−37%
Chains
Shimano Deore XT / Ultegra CN-M8100 Chain with Quick Link - 12 speed - 126L BIKEPARTS+
One size
Shimano
Shimano Deore XT / Ultegra CN-M8100 Chain with Quick Link - 12 speed - 126L 4.4 · 5 reviews £23.06£54.99−58%
Brakes
Shimano Deore XT BR-M8120 / BL-M8100 - 4 pot Brake Lever / Post Mount Callipers BIKEPARTS+
Select size
1 size
Shimano Deore XT
Shimano Deore XT BR-M8120 / BL-M8100 - 4 pot Brake Lever / Post Mount Callipers 5.0 · 2 reviews £129.99£189.99−32%
Rotors
Shimano Deore XT SM-RT86 XT Ice Tech 6-bolt disc rotor; 203 mm BIKEPARTS+
Select size
2 sizes
Shimano Deore XT
Shimano Deore XT SM-RT86 XT Ice Tech 6-bolt disc rotor; 203 mm 5.0 · 2 reviews £49.41£54.99−10%
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