SKU: 25807219524

Shimano Ultegra FC-R8100 Crankset - 170mm, 12-Speed, 50/34t, Hollowtech II Spindle Interface, Black

Sale price$146.67 Regular price$162.97
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Ships within 48 hours · Estimated delivery Jul 14 - Jul 19

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Description

Shimano Ultegra FC-R8100 Crankset - 170mm, 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): 170
  • 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

10+ Available to ship in 2-4 Business Days





UPC: 192790894102
EAN: Not available
Manufacturer Part Number: IFCR8100CX04
CK0648
181725-Q0-L



Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
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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: 25807219524

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4.9 ★★★★★
Based on 2103 reviews
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Honest reviewer
Port Orchard, US
★★★★★ 5
Perfect shorts!
Size: 30, Color: Athens Mid Short - Medum Indigo, Size: 30, Color: Athens Mid Short - Medum Indigo
I was worried these shorts wouldn’t cover enough of the butt area or that I wasn’t thin enough to wear them especially since most of the reviews are from thinner people. but OMG, they’re perfect. I’m 5 4, 152 Lbs and size 30 is absolutely perfect. Size 29 would be small for me.
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Reviewed in the United States on May 2, 2026
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Verified Purchase
Eleven 11
New York, US
★★★★★ 5
Cute distressed shorts but size up!
Size: 30, Color: Athens Mid Short - Medum Indigo, Size: 30, Color: Athens Mid Short - Medum Indigo
Love these shorts! These Levi’s run small. I usually wear a 28 and ordered a 30 because that’s what was available. I’m 5’1”, 135 lbs for reference. They’re distressed and shorter in front which are perfect for us short gals.
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Reviewed in the United States on May 1, 2026
V
Verified Purchase
Victoria C.
Carnegie, US
★★★★★ 5
My go-to shorts this summer
Size: 30, Color: Athens Mid Short - Medum Indigo
These are easily my favorite shorts this summer. The fit is super flattering and they have that classic Levi’s look that never goes out of style. The denim feels high quality and holds its shape without stretching out too much during the day. They’re comfortable once you break them in, and they pair well with pretty much anything. I also like that they’re not too short or too long—just the right length for everyday wear. Definitely worth it if you’re looking for a staple pair of denim shorts!
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Reviewed in the United States on April 25, 2026
C
Verified Purchase
Carley
Birmingham, US
★★★★★ 5
Favorite Summer Shorts worn on repeat
Size: 31, Color: Luxor Heat - Light Indigo
These are my favorite shorts for summer. I have several pairs that I wear on repeat because they’re comfortable, flattering, and hold up really well. I ordered a size up from what I already have since I’m postpartum, but I ended up not needing it—my original size still fits me best. So I did return these, but only because of sizing, not the product itself. I do suggest sizing up 1 size from your normal size. I usually wear a 29 and have these in a size 30 and they fit great. They are a true jean material and not strechy. Highly recommend these if you’re looking for a reliable, go-to pair of denim shorts.
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Reviewed in the United States on June 11, 2026
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Krissy
Omaha, US
★★★★★ 5
Cute & Comfy
Size: 28, Color: Athens Mid Short - Medum Indigo
The only pair of shorts that actually fits really well! Coverage is perfect.
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Reviewed in the United States on May 18, 2026

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