The new design of the Shimano Ultegra FC-R8100 2 x 12-speed HOLLOWTECH II crankset not only brings a cult-like look and aesthetics, but also ensures even better performance.Great speed means great responsibility. That's why, faced with the task of making the new ULTEGRA groupset even faster, Shimano decided to take a holistic and 100% performance-focused approach. Shimano's new 12-speed road groupset delivers unparalleled control and comfort anytime, anywhere - whether you're competing in an amateur race, chasing your personal best, or out for a social ride. That is Science of Speed. And it's what sets SHIMANO apart from the rest.The lightweight ULTEGRA FC-R8100 crankset is a key component in SHIMANO's new 12-speed road cycling range and represents SHIMANO's legendary tradition of fast and precise shifting and efficient power transmission. Crank arms are available in lengths from 160 mm up to 175 mm, so that smaller riders can now also benefit from their flawless performance. Chainring options include 52-36T and 50-34T.
The new design of the Shimano Ultegra FC-R8100 2 x 12-speed HOLLOWTECH II crankset not only brings a cult-like look and aesthetics, but also ensures even better performance.Great speed means great responsibility. That's why, faced with the task of making the new ULTEGRA groupset even faster, Shimano decided to take a holistic and 100% performance-focused approach. Shimano's new 12-speed road groupset delivers unparalleled control and comfort anytime, anywhere - whether you're competing in an amateur race, chasing your personal best, or out for a social ride. That is Science of Speed. And it's what sets SHIMANO apart from the rest.The lightweight ULTEGRA FC-R8100 crankset is a key component in SHIMANO's new 12-speed road cycling range and represents SHIMANO's legendary tradition of fast and precise shifting and efficient power transmission. Crank arms are available in lengths from 160 mm up to 175 mm, so that smaller riders can now also benefit from their flawless performance. Chainring options include 52-36T and 50-34T.
The new design of the Shimano Ultegra FC-R8100 2 x 12-speed HOLLOWTECH II crankset not only brings a cult-like look and aesthetics, but also ensures even better performance.Great speed means great responsibility. That's why, faced with the task of making the new ULTEGRA groupset even faster, Shimano decided to take a holistic and 100% performance-focused approach. Shimano's new 12-speed road groupset delivers unparalleled control and comfort anytime, anywhere - whether you're competing in an amateur race, chasing your personal best, or out for a social ride. That is Science of Speed. And it's what sets SHIMANO apart from the rest.The lightweight ULTEGRA FC-R8100 crankset is a key component in SHIMANO's new 12-speed road cycling range and represents SHIMANO's legendary tradition of fast and precise shifting and efficient power transmission. Crank arms are available in lengths from 160 mm up to 175 mm, so that smaller riders can now also benefit from their flawless performance. Chainring options include 52-36T and 50-34T.
The new design of the Shimano Ultegra FC-R8100 2 x 12-speed HOLLOWTECH II crankset not only brings a cult-like look and aesthetics, but also ensures even better performance.Great speed means great responsibility. That's why, faced with the task of making the new ULTEGRA groupset even faster, Shimano decided to take a holistic and 100% performance-focused approach. Shimano's new 12-speed road groupset delivers unparalleled control and comfort anytime, anywhere - whether you're competing in an amateur race, chasing your personal best, or out for a social ride. That is Science of Speed. And it's what sets SHIMANO apart from the rest.The lightweight ULTEGRA FC-R8100 crankset is a key component in SHIMANO's new 12-speed road cycling range and represents SHIMANO's legendary tradition of fast and precise shifting and efficient power transmission. Crank arms are available in lengths from 160 mm up to 175 mm, so that smaller riders can now also benefit from their flawless performance. Chainring options include 52-36T and 50-34T.
Last updated at 06/09/2026 12:15:18
Shimano Ultegra FC-R8100 12-Speed Chainring - 36t, Asymmetric 110 BCD, Black
Delivery between 15–23 June $12
Shimano ULTEGRA FC-R8100 crankset Crankset 175mm - 50/34
Delivery between Wed – Thu $58.40
Shimano (Cycling) Ultegra Fc-r8100 Crankset 2x12 160mm 52x36t Ifcr8100mx26
Delivery between 16–18 June $230.00
Shimano Ultegra R8100 Chainset - 12 Speed - Black / 36/52 / 172.5mm / 12 Speed
Delivery $45.37
Shimano Ultegra FC-R8100 Crankset 52-36 175mm
Delivery $10
Shimano Ultegra Fc-8100 Crankset
Free delivery
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Shimano Ultegra Fc-r8100 Crankset
Free delivery
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Shimano Ultegra Fc-r8100 52-36t 2x12 Speed 172.5mm Crankset
Free delivery
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Shimano Ultegra R8100 12sp Crankset
Delivery $15
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Shimano Ultegra Fc-r8100 175mm 46x36t Crankset Ifcr8100ex66
Delivery $41.04
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originally posted on bikeinn.com
Stunning view and quality. Fast delivery from bikeinn
originally posted on sigmasports.com
Bought a new Ultegra chainset which, was recommended after a bike fit. Collect in store was very quick and everything was exactly as expected. The staff at the Oakham store are very helpful & approachable. I could also use my Defence Discount Card so got an extra 10% off.
originally posted on cambriabike.com
After searching all over for a 165mm Ultegra crank, I stumbled across Cambria Bike. Having never heard of them before (being on the East Coast), I called them up to confirm what I was seeing their site, to what was actually in their inventory. The staff was knowledgeable and helpful, they assured me that if it says "available" online then its in stock. I placed my order and within 8 hours my part shipped.. I was riding 3 days later! Excellent service and great customer support! Ill be buying again from Cambria
| Crank Arm Length | 160, 165, 170, 172,5, 175 |
| Shifting System | 12-speed |
| Bottom Bracket Axle Profile | 24mm Hollow Shaft |
| Bottom Bracket Case Width | 68mm, 70mm |
| Road - Bolt Circle Diameter | 110mm |
Shimano Ultegra FC-R8100 12-Speed Chainring - 36t, Asymmetric 110 BCD, Black
Delivery between 15–23 June $12
Shimano ULTEGRA FC-R8100 crankset Crankset 175mm - 50/34
Delivery between Wed – Thu $58.40
Shimano (Cycling) Ultegra Fc-r8100 Crankset 2x12 160mm 52x36t Ifcr8100mx26
Delivery between 16–18 June $230.00
Shimano Ultegra R8100 Chainset - 12 Speed - Black / 36/52 / 172.5mm / 12 Speed
Delivery $45.37
Shimano Ultegra FC-R8100 Crankset 52-36 175mm
Delivery $10
Stunning view and quality. Fast delivery from bikeinn
Bought a new Ultegra chainset which, was recommended after a bike fit. Collect in store was very quick and everything was exactly as expected. The staff at the Oakham store are very helpful & approachable. I could also use my Defence Discount Card so got an extra 10% off.
After searching all over for a 165mm Ultegra crank, I stumbled across Cambria Bike. Having never heard of them before (being on the East Coast), I called them up to confirm what I was seeing their site, to what was actually in their inventory. The staff was knowledgeable and helpful, they assured me that if it says "available" online then its in stock. I placed my order and within 8 hours my part shipped.. I was riding 3 days later! Excellent service and great customer support! Ill be buying again from Cambria
I bought this 160 mm crankset to replace my 170 mm, 11 speed cranks. Although Shimano don’t recommend using the 12 speed crankset with 11 speed set ups, it works as well if not better. If you need a wider range of crank lengths, this is a serious option for Shimano users.
The product itself is excellent, but warehouse quality control really dropped the ball. I was quite disappointed when the crankset arrived used (dirt and scratches from prior use) with mismatched R8000 cranks, not 8100. Telephone customer service was excellent and is shipping me a replacement.
This arrived with the box and manual, un-used/open and guarantted original..
Great value over DA. Ultegra is overall best value over other groupsets.
| Crank Arm Length | 160, 165, 170, 172,5, 175 |
| Shifting System | 12-speed |
| Bottom Bracket Axle Profile | 24mm Hollow Shaft |
| Bottom Bracket Case Width | 68mm, 70mm |
| Road - Bolt Circle Diameter | 110mm |
