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Shimano Deore XT M8100 Rear Derailleur 12 Speed Shadow+ SGS

Shimano Deore XT M8100 Rear Derailleur 12 Speed Shadow+ SGS

by Shimano

£74.99from 3 retailers
GTIN04550170443641
EAN4550170443641
MPNRDM8100SGS
Prices updated 15 Mar 2026

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Tweeks Cycles

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£109.99£74.99
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Product Description

The Shimano Deore XT M8100 Rear Derailleur 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.Shimano Deore XT M8100 Rear Derailleur FeaturesXT Shadow plus 12-speed rear derailleur for fast and precise shifting performance-optimized to take on any trailShadow plus features a super low profile design and optimized slant angle for super light shifting actionShadow Plus uses a chain stabilising switch that when on will reduce chain bounce in rough terrain maintaining more stable drive and shiftingSingle tension spring prevents contact with the chainstay resulting in a silent rideRubber bumper on pulley cage for added silent drive13T pulleys and decreased derailleur tension prevent high chain tension in low gearsDirect cable routing prevents snagging from any trail side hazardsCold forged wide alloy links and pivot bodyFour fluorine-coated link pin bushingsStrong return spring for a positive shifting feelSpecifically designed to work with 12-speed 1x drivetrainsDurable sealed 13T bearing pulleys for low frictionTop normal spring uses the spring to select higher gearsMax low sprocket: 51T (1x 12-speed)41T capacity SGS cageAverage weight 284g

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