XT M8100-SGS Rear Derailleur (12-Speed)
SKU: 81372830658

XT M8100-SGS Rear Derailleur (12-Speed)

Sale price$130.49 Regular price$144.99
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  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 7 - Jul 12

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Description

XT M8100-SGS Rear Derailleur (12-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. FEATURES: Offers fast and shockless shifting thanks to HYPERGLIDE+ technology The low profile design includes a bumper added to the

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.

FEATURES:

  • Offers fast and shockless shifting thanks to HYPERGLIDE+ technology
  • The low-profile design includes a bumper added to the derailleur pulley cage
  • Shimano Shadow RD+ technology reduces chain slap and creates a quieter drivetrain
  • Includes large 13t pulley
  • Drivetrain is silent in all gear positions with decreased rear derailleur and chain tension in low gear
  • Long cage is designed to be used with 1x12 drivetrain systems

SPECS:

  • Largest Cog: 51
  • Rear Derailleur Mount Type: 10x1 Standard
  • Chain Wrap Capacity (teeth): 41
  • Cage Length: Long
  • Rear Der/Shifter Compatibility: Shimano Mountain
  • Drivetrain Speeds: 12
  • Weight: 284
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 81372830658

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Ramirez
Natrona Heights, US
★★★★★ 5
Simply
Size: 300A
Nice quality
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Reviewed in the United States on October 3, 2025
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Geekinthenight
Battle Creek, US
★★★★★ 5
Great price and nice quality
Size: 300A
Great price and nice quality
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Reviewed in the United States on September 26, 2024
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RMMcIntosh
West Palm Beach, US
★★★★★ 4
Great price, but don't stack multiple wires
Size: 300A
I used this as a junction point on a 1 gauge wire. I added an 8 gauge wire to one side, and the cover would not seat. I had to bend and maneuver the ring terminals to make the cover catch. For the price of the items, if used without any secondary wires attached and interior use only, this is an unbeatable deal.
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Reviewed in the United States on January 30, 2026
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Joe M. Blair
Belleville, US
★★★★★ 5
Great Quality
Size: 300A
Exactly what I needed. Good quality and worked perfectly.
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Reviewed in the United States on May 21, 2025
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Junior
Waukegan, US
★★★★★ 5
Great
Size: 300A, Size: 300A
Easy to install works great and really good quality and clean looking
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Reviewed in the United States on February 24, 2025

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