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 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)

Ordering Bikes to the UK
£50.00 delivery on all bikes orders to the UK

Ordering all other products to the UK
Orders under £200.00 - Standard Shipping £5.99
Orders over £200.00 - Free Shipping

View our Shipping Policy for full information on shipping options

You may return new items that are unused and in original packaging,within 30 daysof delivery for a full refund minus our original shipping costs to get the goods to you is applicable. In the event we sent you the incorrect item(s) then we will pay the return shipping costs.

Please view our Returns Policy for full details