- Components
- Chainsets & cranks
- shimano fc-r8100 ultegra 12-speed double chainset
shimano fc-r8100 ultegra 12-speed double chainset
- 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 ridersHollowGlide hollow outer chainring gives vast improvements in rigidity by virtually removing outer chainring flex and hugely improves shift performance, even under high loadThe chainring teeth have been developed to work in conjunction with 12-speed HG chains for increased contact to provide greater efficiency and improved power transferIndustry leading HollowTech II cold forged 4 arm hollow cranks have been evolved for maximum rigidity while reducing weightWide gear pitch spacing increases clearance between chain and leading teeth to provide compatibility to frames with O.L.D. 135 / 142 mmA wide range of chainring options and crank arm lengths are available to meet the needs of all riders and racing disciplinesHollowTech II integrated bottom bracket uses a wider bearing placement and larger axle diameter for increased stiffness and efficiencyHollowTech II integrated bottom bracket seal design has minimal bearing interface ensuring smooth rolling and increased durability(sold separately)
How does shipping work in the UK?
For smaller items (excluding bikes) We offer a variety of shipping options within the UK. Giving you the choice on your shipping time. You'll see 3 options on shipping times and prices from Royal Mail on our checkout page, each will require a signature on delivery.
The 3 options are:
Royal mail Tracked 24 - 1 to 2 working days
Royal mail Tracked 48 - 2 to 4 working days
Royal mail Special Delivery (Before 1pm) - Next Working Day
For complete bikes we offer 2 options:
Bike Delivery (Boxed) - 4-6 working days
Bike Delivery (Built) - 7-10 Working Days
International shipping. What to expect.
We ship worldwide, and international shipping usually goes smoothly.
Please note that you’ll be responsible for any duties or taxes once your order arrives in your country. The carrier will typically contact you to complete the necessary steps for delivery—this often includes paying applicable fees or taxes.
All imported goods must go through customs, which is entirely outside of our control. This process can take anywhere from a few hours to several weeks, depending on your country’s regulations.
Once your order ships, you'll receive a tracking number. We see the same tracking updates that you do, so we recommend keeping a close eye on them to stay informed.