SKU: 77391992942

Shimano Ultegra FC-R8100 170mm 50/34t 12-Speed Alloy 4-Bolt 110BCD Crankset

Sale price$112.50 Regular price$125.00
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Ships within 48 hours · Estimated delivery Aug 23 - Aug 28

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Description

Shimano Ultegra FC-R8100 170mm 50/34t 12-Speed Alloy 4-Bolt 110BCD CranksetBrand Model: Shimano Ultegra FC R8100 Material: Alloy Crank Arm Length: 170 mm Chainrings: 50 34t. We may have other chainring options available or may be wiling to sell without chainring at discount message with requests before purchasing. BCD: 110 mm Spindle: 24mm Chainring Mount Type: 4 Bolt Weight: 715 grams Condition: Some light scratches are present on the left crank arm. Chainring Condition: Light wear on the chainring teeth from prior use.

Brand/Model: Shimano Ultegra FC-R8100

Material: Alloy

Crank Arm Length: 170 mm

Chainrings: 50/34t. We may have other chainring options available or may be wiling to sell without chainring at discount - message with requests before purchasing.

BCD: 110 mm

Spindle: 24mm

Chainring Mount Type: 4-Bolt

Weight: 715 grams

Condition: Some light scratches are present on the left crank arm.

Chainring Condition: Light wear on the chainring teeth from prior use.

Also, please reference the listing photos to evaluate the current wear and condition of the item.

At CyclingUpgrades, we fulfill all orders next business day or sooner. Generally we are able to fulfill orders placed by 12pm MT on the same day, however it is not guaranteed. We ship all items via USPS except for frames/wheels which ship via UPS or Fedex. Please check our other listings for additional cycling upgrades and thank you for shopping our store!

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: 77391992942

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4.3 ★★★★★
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Color: Mountains and Waters, Size: 6 Panel
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Reviewed in the United States on May 30, 2026
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Ann
Chelsea, US
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Beautiful Home Edition
Color: Magnolia and Plums, Size: 4 Panel
Beautiful and packaged very well! Quality seems very good!
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Reviewed in the United States on June 1, 2026
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The happy baker
Alexandria, US
★★★★★ 5
Great sock liners
Size: Medium, Color: (001) Black / Black / Pitch Gray
Awesome socks. Has little gel pad on top of heel for no slip. Thin and comfortable. Previously Purchased at Nordstrom rack and no longer in stock. Happy to find here Note: Will shrink a little best to air dry
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Reviewed in the United States on April 16, 2026
K
Verified Purchase
kkl
Los Angeles, US
★★★★★ 5
Very good product
Size: Medium, Color: (001) Black / Black / Pitch Gray
I purchased these to wear inside lowcut slip on casual shoes, I don't particularly like to not wear socks in my shoes for hygienic reasons. Prior to purchasing these socks, all I could find were those made of very light beige hosiery type material , and my slip on shoes would slide around a bit. These are light weight and breathable athletic type material, with a very good gripper strip at the heel. One pair of my slip on casual shoes have a particularly lower cut in the toe area, but the shoe is black and I chose the black color and though I see a hint of the sock there, it matches and does not detract from the look of the casual solid black shoe
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Reviewed in the United States on May 15, 2026
A
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Anna Wylda
Carnegie, US
★★★★★ 5
They stay out! No more sock wads!
Size: Medium, Color: (100) White / White / Mod Gray
Best no show socks ever made!!!!! I've been struggling for 2 years to find ones that actually stay on your foot, even other national brands, and I just became content wearing my sneakers without socks. They ALWAYS slid down into my show & I ended up walking on a wad of sock until I could fix it...or usually just took them off after a couple of tries. Enter Under Armor!!! They a mid weight, but not very thick & still breathable. They work too by actually staying on your foot! Not once have they slid down into my show!! Very comfortable but they could be a little more affordable.
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Reviewed in the United States on August 1, 2025

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