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Shimano FC-R8100 Ultegra 12-speed Double Chainset Crankset 172.5mm 50-34 NEW

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Regular price £184.99 GBP
Regular price Sale price £184.99 GBP
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  • 30 day warranty on used parts. Manufacturer warranty on new parts.

  • Always the best price on the net

  • Part exchange/Trade in service



Shimano FC-R8100 Ultegra 12-speed Double Chainset Crankset 172.5mm 50-34





The hollowtech ii 12-speed Ultegra chainset offers an ideal balance of light weight and stiffness, making it the perfect choice for both enthusiast and competitive riders.


Hollowglide hollow outer chainring gives vast improvements in rigidity by virtually removing outer chainring flex and hugely improves shift performance, even under high load

The chainring teeth have been developed to work in conjunction with 12-speed hg chains for increased contact to provide greater efficiency and improved power transfer

Industry leading hollowtech ii cold forged 4 arm hollow cranks have been evolved for maximum rigidity while reducing weight

Wide gear pitch spacing increases clearance between chain and leading teeth to provide compatibility to frames with o.L.D. 135 / 142 mm

A wide range of chainring options and crank arm lengths are available to meet the needs of all riders and racing disciplines

Hollowtech ii integrated bottom bracket uses a wider bearing placement and larger axle diameter for increased stiffness and efficiency

Hollowtech ii integrated bottom bracket seal design has minimal bearing interface ensuring smooth rolling and increased durability (sold separately)


Brand new in box with warranty.


Secondhand Bike Parts Ltd

✨ WHY CHOOSE US? We pride ourselves on offering a curated selection of high-quality second-hand bike parts catering to various cycling disciplines including road, mountain biking (MTB), gravel, and Cyclocross.  Our team is dedicated, each with a passion for cycling, ensuring we understand the needs of our customers intimately.

💳 PAYMENT METHODS: We accept PayPal, Credit/Debit Card, Bank Transfer and payment through eBay.

🛡️ WARRANTY: Rest easy with our 30-day warranty on all parts.

🔄 PART EXCHANGE: Got old parts? Trade them in with us towards your next upgrade, parts must be worth a minimum of £200 and all offers will be at trade price.

🤝 EPIC CUSTOMER SERVICE: Expect nothing less than exceptional service with a personal touch.  Feel free to check out our 100% positive feedback rate on eBay and Facebook.

🚚 SHIPPING: Get your parts fast with our next day delivery.  Collection is also available depending on the parts location (we are based in Birmingham and London)

Shimano FC-R8100 Ultegra 12-speed Double Chainset Crankset 172.5mm 50-34 NEW
  • £184.99