Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 11 - Jul 16
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For Your Every Summer RSVP, with Code: SUMMER15
Description
Shimano XT RD-M8100-GS Rear Derailleur - 12-Speed, Medium Cage, BlackThe Shimano Deore XT RD M8100 rear derailleur offers fast and precise shifting performance optimized to take on any trail. 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
The Shimano Deore XT RD-M8100 rear derailleur offers fast and precise shifting performance optimized to take on any trail.- 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
Product Specifics
- Rear Derailleur Mount Type: Shimano Rear Direct Mount
- Rear Derailleur Mount Type: 10x1 Standard
- Rear Der/Shifter Compatibility: Shimano Mountain
- Color: Black
- Cage Length: Medium
- Drivetrain Speeds: 12
- Largest Cog: 45
Today's Stock Status
10+ Available to ship in 2-4 Business Days
UPC: 192790897097
EAN: Not available
Manufacturer Part Number: IRDM8100GS
RD0204
156119-Q0-L
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- 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
4.1 ★★★★★
Based on 652 reviews
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Product Reviews
★★★★★ 5
divinas mis gafas
Color: Porcini Tortoise, Size: 52-17-140
divinas
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 17, 2026
★★★★★ 4
Cute but not hinged at arms
Color: Porcini Tortoise, Size: 52-17-140
They were cute. I didn’t like that they weren’t hinged. They were harder to open and close. I didn’t look for this feature before I purchased.
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Reviewed in the United States on February 3, 2026
★★★★★ 5
Anteojos modernos.
Color: Blush Tortoise, Size: Lens-52 Bridge-17 B-37.5 ED-56.1 Temple-140, Color: Blush Tortoise, Size: Lens-52 Bridge-17 B-37.5 ED-56.1 Temple-140
Mis lentes son muy cómodos, y me gustan como lucen, vienen sin medidas yo los adecué con mi Optometrista.
Se aflojan con el tiempo, pero compré una pinza que ajusta los tornillos…realmente lucen como nuevos.
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Reviewed in the United States on January 20, 2026
★★★★★ 5
The glasses are made well
Color: Pearl Brown Tort, Size: 53-16-135
The glasses fit well and are made well. They are Great value for the money.
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Reviewed in the United States on November 24, 2024
★★★★★ 5
Hotel quality, budget friendly
Size: King, Style: Light
I’ve only used this for several nights. Overall I’m pretty happy with it, especially for the price. It is soft to the touch and has a nice, smooth feel. It’s lightweight but still provides enough warmth for mild to cool nights. I don’t like feeling weighed down when I sleep, so the light fill is actually a big plus for me. If you’re someone who sleeps hot, this is a solid choice. The corner tabs are super helpful. I paired it with a duvet cover and haven’t had issues with shifting or bunching. It also fits my bed well, though I could see it being a bit short on the sides if you have a very thick mattress. This is a great budget-friendly option and seems like it will be easy to maintain.
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Reviewed in the United States on September 19, 2025
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