SKU: 27357539985

Shimano FC-R8100 Front Crankset Ultegra 52-36 172.5mm 12-Speed

$238.48 $264.98
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Ships within 48 hours · Estimated delivery Aug 11 - Aug 16

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Description

Shimano FC-R8100 Front Crankset Ultegra 52-36 172.5mm 12-SpeedULTEGRA's new FC R8100 crank maintains the same quick, precise front shifting and efficient power transfer that Shimano riders have grown accustomed to, but with even more crank arm length options. Spanning 160 to 175 mm in length, ULTEGRA cranks now cater to smaller riders, triathletes, and cyclists curious about shorter crank arms. An integral part of Shimano's new 12 speed road lineup, the FC R8100 crank builds upon Shimano's legendary front

 

ULTEGRA's new FC-R8100 crank maintains the same quick, precise front shifting and efficient power transfer that Shimano riders have grown accustomed to, but with even more crank arm length options. Spanning 160 to 175 mm in length, ULTEGRA cranks now cater to smaller riders, triathletes, and cyclists curious about shorter crank arms.

An integral part of Shimano's new 12-speed road lineup, the FC-R8100 crank 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 lengths from 160 to 175 mm, bringing performance and improved fit for smaller riders, triathletes, and riders with specific biomechanical requirements.

FEATURES

Optimal balance of stiffness, strength, weight and rotational performanceHOLLOWGLIDE structure cuts weight yet maintains strength for better power transfer and quicker, more precise front shifting
52-36, 50-34, and 46-36 chainring options. 160, 165, 170, 172.5, and 175 mm crank arm lengths.
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.
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SKU: 27357539985

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4.0 ★★★★★
Based on 15 reviews
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Product Reviews
J
Verified Purchase
Jarrett Austin
Cuba, US
★★★★★ 5
Awesome Wire
Size: 15FT, Style: 8AWG
These work great! I purchased these for my subwoofer and they do a great job! Super flexible! They have no weird smells either! Would buy again!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 7, 2025
F
Verified Purchase
Federico Villamil
Port Orchard, US
★★★★★ 5
Amazing
Size: 5FT, Style: 8AWG
Excelente producto
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 14, 2025
T
Verified Purchase
TIM
Omaha, US
★★★★★ 5
Thamks
Size: 5FT, Style: 8AWG
Thanks
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 9, 2025
D
Dave B
Dallas, US
★★★★★ 5
Very high quality wire is great for automotive use
Size: 25FT, Style: 8AWG
This is really good quality wire. The insulation is thick, it is super flexible and very finely stranded. In fact the strands are so fine that you really should be using ferrules to terminate the wire. Without a ferrule, it would be very easy to have a stray strand extend to another terminal, and the strands are so fine that you may not even see it if you have old eyes like me. I used this wire to run from my battery to a fuse, and then to an amplifier inside my vehicle. The wire is so flexible that it may be difficult to push it through the grommets in the firewall of a vehicle. I wound up taping it to a coat hanger, and pushing it through, which was an effective workaround. The insulation is also a bit grippy, so it may be a good idea to apply a lubricant to the grommet, so you don't wind up pulling the whole grommet out of the hole while pulling the wire. If I needed more wire, I would certainly pick up more of this for my next project.
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Reviewed in the United States on October 14, 2025
O
Oldshoes
Belleville, US
★★★★★ 5
Good as it Gets
Size: 50FT, Style: 8AWG, Size: 50FT, Style: 8AWG
This is excellent wire I've been doing solar set ups for about 2 years now and this is as good as any I have used or seen. The Silicone insulation is super supple - it can easily be bent into quarter (25 cent) size loops. It is a true 8AWG super fine stranded tinned copper cable. It doesn't appear to be listed - but the cable is stamped every couple inches with 200* C and 8AWG. I'll forgo the listing - I know this stuff is good wire - and the only inspection I have to pass is my own. I ordered the 50 foot Red, 50 foot black. It is selling now for about 90 bucks. 90 cents a foot – pretty good deal for this wire. 7 Super Novas for The YDDECW 50ft Red & 50ft Black, 8 AWG Tinned Copper cable kit.
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Reviewed in the United States on August 31, 2025

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