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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.
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.
Shimano

C/SET Ultegra R8100 50/34 172. 5mm Grey 50 used do not list

£220.00 £299.99 27% off
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Pre-Order

With Pre-Order, you can purchase the latest items added to our store in advance of them arriving with us.

Your Pre-Order is prioritised (at no additional charge); meaning that as soon as the product arrives with us, we can wrap it straight back up; ready for collection via Click & Collect or despatch to you — it often never even hits the stock room shelves!

Pre-Launch

With Pre-Launch, the date when we expect to receive the product ourselves is still a little too hazy to be confident in accepting Pre-Orders.

So, instead, you can submit your email address against the item you are interested in and we will email you as soon as stock arrives on the system.

Estimated Delivery & Collection Dates

Estimated Delivery & Collection Dates are given on Pre-Order and Pre-Launch products. They are for indication purposes only and can change at any time without notice.

The dates we provide are based on indications given by our suppliers. Whenever we get updated information from our suppliers we will endeavour to update the Estimated Delivery & Collection Dates provided on product pages.

We estimate this will be ready for despatch to you or collection via Click & Collect on Undetermined
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30 Day Returns

We offer a 30 day returns policy. We will only refund return postage costs on damaged/faulty goods (a postage receipt will be needed). Refunds will only be returned to the original payment method – this may take up to 10 days to appear depending on how you paid.

WHAT WE CAN DO:

  • We offer a 30 day returns policy.
  • We will only refund return postage costs on damaged/faulty goods (a postage receipt will be needed)
  • Refunds will only be returned to the original payment method – this may take up to 10 days to appear depending on how you paid.

WHAT WE CANNOT DO

  • We cannot refund your return postage if you have changed your mind or ordered incorrectly.
  • We are unable to accept returns where the goods or packaging is lost, damaged or not in the condition you received it in.Please note that bikes must be returned in a securely-packaged bike box.
  • We are unable to offer a return on items that have been bought in the sale, gift voucher's or store credits can be issued.
  • We cannot accept returns without a completed returns form – items received without the correct paper work will delay the returns process.
  • We are unable to offer a refund without proof of purchase.

WHAT YOU NEED TO DO

  • Always hold on to your packaging (including bike boxes) until you are completely satisfied with your purchase – we cannot accept returns without this.Please note that bikes must be returned in a securely-packaged bike box.
  • Try and keep packaging intact as damaged packaging may invalidate your right to a refund.
  • When returning your order under warranty please make sure any items of clothing, footwear or bikes have been suitably cleaned – failure to do this may delay or invalidate your warranty claim.
  • It is your responsibility to ensure that the item is returned to us in a safe and secure manner, we suggest that you use a recorded postal/courier service. Please ensure that the service you use covers the value of the goods in the parcel.

C/SET Ultegra R8100 50/34 172. 5mm Grey 50 used do not list

Brand:Shimano

Code:FCR8100D04

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.

Features:
  • 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)
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