SHIMANO CSM8100 XT 12SPD CASSETTE 10-51
SKU: 84717156941

SHIMANO CSM8100 XT 12SPD CASSETTE 10-51

Sale price$1530.00 Regular price$1700.00
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Ships within 48 hours · Estimated delivery Jul 7 - Jul 12

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Description

SHIMANO CSM8100 XT 12SPD CASSETTE 10-51SHIMANO DEORE XT 12 Speed HYPERGLIDE+ MTB Cassette Sprocket With its BEAM SPIDER construction, the new SHIMANO DEORE XT M8100 12 speed cassette shaves weight while increasing SHIMANO's MTB gearing range another gear. Using SHIMANO's new MICRO SPLINE freehub body and HYPERGLIDE+ tooth profile, these 10 45 and 10 51T cassettes deliver advanced shifting performance. FEATURES Definitive shifting performance New shift ramp designs provide the fastest,

SHIMANO DEORE XT - 12-Speed - HYPERGLIDE+ - MTB Cassette Sprocket

With its BEAM SPIDER construction, the new SHIMANO DEORE XT M8100 12-speed cassette shaves weight while increasing SHIMANO's MTB gearing range another gear. Using SHIMANO's new MICRO SPLINE freehub body and HYPERGLIDE+ tooth profile, these 10-45 and 10-51T cassettes deliver advanced shifting performance.

FEATURES

Definitive shifting performance
New shift ramp designs provide the fastest, smoothest shifts by HYPERGLIDE+
BEAM SPIDER
Lighter and stiffer construction
Reduces cassette inertia resulting in faster acceleration and increased chain security
MICRO SPLINE
10T lowest sprocket realized by new FREEHUB body construction
Wide range and close step 12-speed drivetrain

PRODUCT SPECIFICATIONS

MODEL NO CS-M8100-12
SERIES DEORE XT M8100 Series
Average weight 461 (10-45T) 470 (10-51T)
Type HYPERGLIDE+
Rear speeds 12
Compatible chain HG 12-speed
Combination name (Group name) 10-45T, 10-51T
Combination * Titanium gear|1 10-12-14-16-18-21-24-28-32-36-40-45T
Combination * Titanium gear|2 10-12-14-16-18-21-24-28-33-39-45-51T
Spline type|MICRO SPLINE ✔
Aluminum spider arm|QTY (pcs) 1
Aluminum gear|QTY (pcs) 2
Steel gear|QTY (pcs) 10

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
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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: 84717156941

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GN
Grantham, US
★★★★★ 5
MUST BUY Item for Breastfeeding Moms
Size: Standard (18-Inch), Color: Dark Grey
MUST GET item for breastfeeding moms. It is a soft pillow with a removable washable cover. The material is like a suede, which can make it hot to lean on if you typically feel hot when breastfeeding or sleeping. It allows you to sit up straight while in bed with great support.
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Reviewed in the United States on May 1, 2026
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Ms. Rea
Whiting, US
★★★★★ 5
It's perfect support.
Size: Extra Back Support (21-Inch), Color: Dark Grey
The best way to describe the super comfy reading pillow is super comfy. I use it to sit up while watching something soothing to my mind on tv and due to its comfyness and softness, it's perfectly just right for my back. The funny thing is within a few minutes I'm knocked out sleep, which is a good thing. It's soft but firm lumbar area and arms feels oh so comfortable. It gives the best sleep quality and less toss and turning. I highly recommend.
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Reviewed in the United States on May 7, 2026
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Michael Simko
Boise, US
★★★★★ 4
Great Size and Comfort
Size: Extra Back Support (21-Inch), Color: Dark Grey
2 months after buying a different reading pillow I felt it was time to buy a different one based on the comfort and support. I found this one listed for a good price. After carefully looking through the listing, I bought the 21" size. On my first night of usage, I was already impressed with the comfort and support vs the reading pillow I had bought 2 months prior. I like how this one has nice support for my neck and head as I'm relaxing on my bed with my laptop and phone. The texture of the filling gives it a very nice combination of cushioning and firmness. The horizontal feature line in the center of the pillow is a nice feature for back and neck support thanks to it giving the pillow some flexibility. As for the arms, their length, width, height, and cushioning are very good for resting my arm while I'm using the wireless mouse with my laptop.
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Reviewed in the United States on February 27, 2026
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GhostFingersXP
Houston, US
★★★★★ 5
Book Reading Wife Approved
Size: Standard (18-Inch), Color: Sage Green
I purchased this for my wife who reads quite a bit and she absolutely loves it. She said it feels soft, is the right size for her, and makes book reading more comfortable for her. I call it a win.
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Reviewed in the United States on April 23, 2026
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A Brown
Lowell, US
★★★★★ 3
Not good quality
Size: Standard (18-Inch), Color: Dark Grey
Comfy, however it’s getting flat an only had it a week
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Reviewed in the United States on April 27, 2026

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