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Shimano RD-M8100 XT 12 Speed Rear Derailleur Shadow+ GS Single Black - Image 1
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Shimano RD-M8100 XT 12 Speed Rear Derailleur Shadow+ GS Single Black

Shimano

Compare today's prices on the "Shimano RD-M8100 XT 12 Speed Rear Derailleur Shadow+ GS Single Black".

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Last Updated: 28/05/2026
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Product Description

Compare today's prices on the "Shimano RD-M8100 XT 12 Speed Rear Derailleur Shadow+ GS Single Black".

Shimano RD-M8100 XT 12 Speed Rear Derailleur Shadow+ GS Single Black

This rear derailleur delivers the fast, precise shifting performance you need to conquer any trail with confidence. Engineered for serious mountain bikers, the RD-M8100 XT combines Shimano’s latest Shadow+ technology with a robust GS cage to keep your drivetrain running smoothly even in the roughest terrain. Whether you’re climbing steep singletrack or blasting through rock gardens, this derailleur maintains chain stability and reduces slap, ensuring every gear change is crisp and reliable.

- Shadow+ low-profile design with stabiliser ON/OFF switch reduces chain bounce and noise on rough ground

- 12-speed compatible for the widest gear range with seamless shifting

- GS (medium) cage suits 10-45T or 10-51T cassettes, ideal for mixed trail conditions

- Aluminium outer link and plated steel inner link for a lightweight yet durable construction

- Silent clutch mechanism minimises chain drop and keeps the drivetrain quiet

- Compatible with Shimano XT M8100 and SLX M7100 series shifters and cassettes

- Optimised cable routing for smoother operation and reduced friction

- Maximum rear sprocket: 51T; minimum rear sprocket: 10T; total capacity: 35T

Built to handle the demands of modern trail riding, this derailleur offers the performance and reliability that XT is known for, making it a worthy upgrade for any ambitious rider.

GTIN: 4550170897093