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Ships within 48 hours · Estimated delivery Oct 1 - Oct 6
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Description
Shimano Ultegra FC-R8100 Crankset - 172.5mm, 12-Speed, 50/34t, Hollowtech II Spindle Interface, BlackAn integral part of the Shimano Ultegra 12 speed road lineup, the FC R8100 crankset builds upon Shimano's legendary front shifting and transmission efficiency. With new refinements for seamless 12 speed shifting, the Ultegra crank is now offered in a wide variety of lengths, bringing performance and improved fit for smaller riders, triathletes, and riders with specific biomechanic requirements. Optimal balance of stiffness, strength, weight and
An integral part of the Shimano Ultegra 12-speed road lineup, the FC-R8100 crankset builds upon Shimano's legendary front shifting and transmission efficiency. With new refinements for seamless 12-speed shifting, the Ultegra crank is now offered in a wide variety of lengths, bringing performance and improved fit for smaller riders, triathletes, and riders with specific biomechanic requirements.- Optimal balance of stiffness, strength, weight and rotational performance
- Hollowglide structure cuts weight yet maintains strength for better power transfer and quicker, more precise front shifting
Product Specifics
- Color: Black
- Rings: 50/34
- Number of Chainrings: Double
- Crank Length (mm): 172.5
- Crank Intended Use: Road
- Drivetrain Speeds: 12
- BB Included: No
- Pedal Spindle: 9/16"
- Spindle Interface Type: Shimano Hollowtech II
- Chainring BCD: 110 Shimano Asymmetric
- Chainline/Hub Compatibility: 130 Hubs
Today's Stock Status
2 Available to ship in 2-4 Business Days
UPC: 192790894089
EAN: Not available
Manufacturer Part Number: IFCR8100DX04
CK0650
181723-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
4.6 ★★★★★
Based on 18 reviews
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Product Reviews
★★★★★ 5
Excellent floating shelves look very high end
Easy to install and bracket is hidden once shelf is installed Very sturdy. Wipe clean surface.
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Reviewed in the United States on April 21, 2026
★★★★★ 5
Great shelves!
Size: 24x5.8, Color: Black, Size: 24x5.8, Color: Black
I love these shelves (I purchased 6 shelves total).
The size I got was perfect, looks phenomenal, & quality is great too! Only negative thing I’d say is that it could be difficult for some people to set up as it needs to be leveled, & can be hard to align with other things since the part that attaches to the wall is separate from the shelf (due to its floating design) but once it’s up, it looks great.
Definitely good value for money with its quality.
I have them to hold up decorations/toys, & you think some of my shelves have about 5lbs of stuff on it & I’ve had no issues, so functionality is good.
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Reviewed in the United States on December 12, 2025
★★★★★ 5
Easy install and looks good
Exactly as expected. Easy to install and look great.
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Reviewed in the United States on May 6, 2026
★★★★★ 5
Extremely satisfied
Size: 24x5.8, Color: Black, Size: 24x5.8, Color: Black
Very nice. I am extremely happy with them. I used painters tape to hold the bracket in place while I screwed it in, worked like a charm 😁 holds a lot of items
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Reviewed in the United States on April 11, 2026
★★★★★ 3
Good enough
Size: 15x6.8, Color: Black
As cheap as the day is long but functional. These are basically made out of highly compressed paper and finished to feel like wood. The first one I put up was good with a little tilt to the back which is fine. The second one has a more severe tilt and I had to bend the bracket down to decently level it out. They are sturdy enough to hold quite a bit of weight and look good for what they are. I'm not impressed but I'm also not disappointed, the price is a bit steep for what they are but they serve their purpose.
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Reviewed in the United States on November 15, 2025
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