£76.72

This is the most expensive it has ever been. Walk away.

£77 today · previous high £77 · all-time low £65

SHIMANO Shimano Deore XT RD-M8100 12-Speed Rear Derailleur - SGS

Amazon

Price History & Forecast

Grey patches = out of stock. Cheaper = lower on the chart. Hover for exact prices.

Last 34 days · 34 data points (no recent data)

Historical
Generating forecast…
£76.72 £63.82 £66.63 £69.45 £72.26 £75.08 £77.89 18 July 2026 26 July 2026 03 August 2026 11 August 2026 20 August 2026
View at Amazon ↗

Black, 587830

Price data last checked 57 day(s) ago - refreshing...

NEW HERE?

Amazon shows you one price. We show you all of them.

Tosheroon watches Amazon prices so you don't have to. Every product on Amazon has a price history — we make it visible. Set the price you'd actually pay, and we'll email you the second it gets there. No app, no account, one email.

WHAT'S ON THIS PAGE

↑ Price chart
when this has been cheap or pricey
↑ Forecast
where the price is heading next
↓ Statistics
all-time high & low, recent range
↑ Price alert
name your number, we'll email you

Price Distribution

Price distribution over 34 days • 6 price levels

Days at Price
Current Price
2 days 3 days 2 days 3 days 23 days 1 day · current 0 6 12 17 23 £65 £66 £70 £72 £76 £77 Days at Price

Price Analysis

Most common price: £76 (23 days, 67.6%)

Price range: £65 - £77

Price levels: 6 different prices over 34 days

Description
Upgrade your mountain bike drivetrain with the Shimano Deore XT RD-M8100 rear derailleur. This 12-speed component is engineered for precise and reliable gear shifting, providing the performance needed for demanding rides. Designed specifically for single chainring setups, it utilizes Shimano's Shadow+ technology to enhance chain retention and maintain quiet operation even on rough terrain. The SGS long cage design allows for compatibility with a wide range of cassettes, making it a versatile choice for various mountain bike configurations. Built with durable construction and the high standards of the Shimano Deore XT line, this derailleur features a sleek black finish that complements your bike's aesthetic while delivering long-lasting quality.

Key Features

The Shimano Deore XT RD-M8100 provides precise 12-speed shifting for improved gear control on your mountain bike.

Integrated Shadow+ technology enhances chain retention and ensures quiet operation during technical rides.

The SGS long cage design accommodates a wide range of cassettes for versatile gear selection.

This rear derailleur is specifically designed for single chainring setups to optimize drivetrain performance.

Built with durable construction and a sleek black finish, this Shimano component ensures long-lasting reliability.

Product Specifications
Brand
SHIMANO
Model
587830
Colour
Black
Size
Sgs - Long
ASIN
B07SWQZB46
Category
Sports & Outdoors > Sports > Cycling > Components & Parts > Derailleurs & Parts > Rear Derailleurs
Domain
Amazon UK
Release Date
20 September 2022
Listed Since
08 July 2019

Barcode

No barcode data available

Similar Products You Might Like

Shimano Deore RD-M6000 Shadow+ 10-Speed Rear Derailleur
98% match

Shimano Deore RD-M6000 Shadow+ 10-Speed Rear Derailleur

SHIMANO

£36.71 26 Sep 2026
SHIMANO Deore XT M8000 Rear Derailleur - 11-Speed Shadow RD+
98% match

SHIMANO Deore XT M8000 Rear Derailleur - 11-Speed Shadow RD+

SHIMANO

£73.99 21 Aug 2026
Shimano 105 R7000 SS 11-Speed Rear Derailleur - Black
98% match

Shimano 105 R7000 SS 11-Speed Rear Derailleur - Black

SHIMANO

£76.87 25 Aug 2026
SHIMANO 105 CS-R7000 11-Speed Cassette and HG-701 Chain Set
98% match

SHIMANO 105 CS-R7000 11-Speed Cassette and HG-701 Chain Set

SHIMANO

Price unavailable
Shimano XT Shadow GS Exchange C/Stabiliser in Mountain Chain-Black, 10 Speed
98% match

Shimano XT Shadow GS Exchange C/Stabiliser in Mountain Chain-Black, 10 Speed

SHIMANO

£94.90 07 Oct 2026
SRAM 101839 Bike Accessory Plato X-sync2 Sl Eagle 34D Dm 6offset gray Lun for cyclists, designed for smooth riding and bike upkeep, gray
98% match

SRAM 101839 Bike Accessory Plato X-sync2 Sl Eagle 34D Dm 6offset gray Lun for cyclists, designed for smooth riding and bike upkeep, gray

SRAM

£95.82 25 Aug 2026
SRAM GX Eagle DUB Boost Group Set - 12-Speed, 175mm, Black
97% match

SRAM GX Eagle DUB Boost Group Set - 12-Speed, 175mm, Black

SRAM

£409.44 17 Sep 2026
SRAM X-SYNC SL Eagle 34T Chainring - Gold
97% match

SRAM X-SYNC SL Eagle 34T Chainring - Gold

SRAM

£76.99 26 Aug 2026
SRAM Corporation Europe X01 DH Crankset Black 34T
97% match

SRAM Corporation Europe X01 DH Crankset Black 34T

SRAM

£251.99 09 Oct 2026
Specialites TA One 96mm BCD 34t Chainring - Black
97% match

Specialites TA One 96mm BCD 34t Chainring - Black

Spécialités TA

£61.99 02 Sep 2026
Spécialités TA One 96 Narrow/Wide Chainring, 32t, Black
97% match

Spécialités TA One 96 Narrow/Wide Chainring, 32t, Black

Spécialités TA

Price unavailable
SRAM PLATO X-SYNC 12/11V EAGLE SL 32D Chainring - Lunar Grey
97% match

SRAM PLATO X-SYNC 12/11V EAGLE SL 32D Chainring - Lunar Grey

SRAM

£101.99 21 Aug 2026
CR X-SYNC EAGLE 30T DM 3 OFFSET B PLR
97% match

CR X-SYNC EAGLE 30T DM 3 OFFSET B PLR

SRAM

£40.99 13 Oct 2026
Shimano XTR RD-M9100 12-Speed Rear Derailleur - SGS Long Cage
97% match

Shimano XTR RD-M9100 12-Speed Rear Derailleur - SGS Long Cage

SHIMANO

£182.49 25 Aug 2026
SRAM Rear Derailleur X01Dh Type 3.0 7-Speed Medium Cage Red: Red 7 Speed
97% match

SRAM Rear Derailleur X01Dh Type 3.0 7-Speed Medium Cage Red: Red 7 Speed

SRAM

Price unavailable
Sram Chain Ring X-Sync 2 Sl Direct Mount 3mm Offset Boost Eagle: Lunar Grey 30T
97% match

Sram Chain Ring X-Sync 2 Sl Direct Mount 3mm Offset Boost Eagle: Lunar Grey 30T

SRAM

£73.99 31 Jul 2026
Specialites TA One 96mm BCD 36t Chainring - Black
97% match

Specialites TA One 96mm BCD 36t Chainring - Black

Spécialités TA

£78.87 03 Sep 2026
Campagnolo Chorus 12 Speed Rear Derailleur, One Size, Black
97% match

Campagnolo Chorus 12 Speed Rear Derailleur, One Size, Black

Campagnolo

£142.14 22 Aug 2026
Shimano SLX RD-M7100 12-Speed Rear Derailleur - Black SGS
97% match

Shimano SLX RD-M7100 12-Speed Rear Derailleur - Black SGS

SHIMANO

£54.99 07 Sep 2026
Clarks Cycle Systems Standard Chain, Silver, 12 Speed, Fits All Major Derailleur Systems
97% match

Clarks Cycle Systems Standard Chain, Silver, 12 Speed, Fits All Major Derailleur Systems

Clarks Cycle Systems

£50.64 11 Aug 2026
SHIMANO,ERDM5120SGS Deore Deore M5120 rear derailleur, 10/11-speed, Shadow+, SGS long cage, Black & KMC Unisex's X10 Chain, Grey, 114 Link
97% match

SHIMANO,ERDM5120SGS Deore Deore M5120 rear derailleur, 10/11-speed, Shadow+, SGS long cage, Black & KMC Unisex's X10 Chain, Grey, 114 Link

SHIMANO

Price unavailable
Spécialités TA Chinook 104/64pcd 4 Arm 10/11 Speed Chainring, Black, 46T Outer (18mm)
97% match

Spécialités TA Chinook 104/64pcd 4 Arm 10/11 Speed Chainring, Black, 46T Outer (18mm)

Spécialités TA

£46.99 03 Sep 2026
Shimano RD-M781 XT 10-speed Shadow design rear derailleur, GS, top normal, black
97% match

Shimano RD-M781 XT 10-speed Shadow design rear derailleur, GS, top normal, black

SHIMANO

Price unavailable
Spécialités TA Chinook 104/64pcd 4 Arm 10/11 Speed Chainring, Black, 44T Outer (18mm)
97% match

Spécialités TA Chinook 104/64pcd 4 Arm 10/11 Speed Chainring, Black, 44T Outer (18mm)

Spécialités TA

£47.99 03 Sep 2026