SKU: 55068052115

RD-M8100 REAR DERAILLEUR XT 1 x 12-SPEED 10-51 Cassette only

$96.75 $107.50
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Ships within 48 hours · Estimated delivery Sep 28 - Oct 3

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Description

RD-M8100 REAR DERAILLEUR XT 1 x 12-SPEED 10-51 Cassette onlyThe Shimano XT RD M8100 1x12 speed rear derailleur features an elegant yet aggressive angled design and an attractive anodised aluminium surface. The derailleurs feature bigger 13 tooth pulleys and include Shimanos proven Shadow RD+ low profile technology. Shadow RD+ For optimal chain retention RD M8100 SGS 51T max cog size Works with both 12 speed 10 51 and 10 45 teeth cassettes Pulley size with 13T increased for reduced friction Recommended chain:

The Shimano XT RD-M8100 1x12-speed rear derailleur features an elegant yet aggressive angled design and an attractive anodised aluminium surface.

The derailleurs feature bigger 13-tooth pulleys and include Shimano’s proven Shadow RD+ low profile technology.

  • Shadow RD+ For optimal chain retention
  • RD-M8100-SGS  
    • 51T max cog size
    • Works with both 12-speed 10-51 and 10-45-teeth cassettes
  • Pulley size with 13T increased for reduced friction
  • Recommended chain: CN-M8100 12-speed
  • Weight: approx. 284g (manufacturer information)

About Shimano
Established in Japan in 1921, Shimano is the worlds largest bicycle component manufacturer. Whether it be drive systems, brakes, pedals or shoes, Shimano stands for reliable quality and performance. From Road & Gravel to Mountain, Touring & Urban use, Mechanical or Electric.

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: 55068052115

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4.1 ★★★★★
Based on 14 reviews
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Product Reviews
A
Verified Purchase
Andrew B.
Alexandria, US
★★★★★ 5
UPDATED: Replacement works great
Color: 3000K Warm, Size: 1Roll x 16.4ft
FINAL UPDATE: Seller shipped new power unit and it works great now. The lights are really great and super easy to cut to size and use. UPDATE 1: Seller got in touch and is sending replacement power unit. Will update again once it arrives. I do really like the look of these and they did wonders for a dark park of my closet that has built-ins. ORIGINAL: Lights stopped working after about 6 weeks (beyond the 30 day return policy). Seems like the control unit died. Haven’t found any feasible way to contact seller or manufacturer. Will update review if anything changes.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 26, 2025
A
Verified Purchase
Aerdnua24
Fort Morgan, US
★★★★★ 4
Light it up!
Color: 3000K Warm, Size: 2Roll x 16.4ft, Color: 3000K Warm, Size: 2Roll x 16.4ft
I am very happy with these. They are easy to use. The only reason I am not giving a five star review is because the instructions and assembly weren’t the easiest. At first we could not get them to work. After looking through the reviews, one man told us that the -\+ were backwards and we tried what he suggested and they worked. I do suggest that because there are two light reels there should be two connecter boxes as well. We had to purchase two packages. Overall, We are satisfied with our purchase.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 9, 2026
C
Verified Purchase
Chris
Waukegan, US
★★★★★ 1
Quality just isn’t there
Color: 3000K Warm, Size: 2Roll x 16.4ft
Was very excited to receive this product because I had difficulty lighting op these LED strip lights, this looks like a package that had everything that I needed. First off, the strip lights themselves are very thin with wise and would look funny on my project, the adhesive backing did not stick at all once removed The touch sensor works great for about 10 minutes and then completely died, overall not impressed with the quality of this product, sending back
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 4, 2026
N
Verified Purchase
north80
Bozeman, US
★★★★★ 5
Excellent Cabinet Lights!
Color: 3000K Warm, Size: 1Roll x 16.4ft
Great cabinet lights. Easy to install and connect. The touch less control is handy and works well to dim and turn the lights on and off. Been using them for half a year now. No complaints.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 30, 2025
T
Verified Purchase
Thomas H Gilmore
Grantham, US
★★★★★ 5
Works great
Color: 3000K Warm, Size: 1Roll x 16.4ft, Color: 3000K Warm, Size: 1Roll x 16.4ft
works well
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 19, 2026

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