ST-R8050 Ultegra Di2 STI for drop bar without E-tube wires. A soft light tough is all you need instantaneously select the correct gear. Full and semi synchronized shifting programable, Synchro shift compatible meaning a single shifter can control both front and rear shifting which can be fully custom tuned to your riding preferences. Semi synchronized shifting means when a front shift is made the rear mech will automatically correct to the appropriate ratio. Drop bar STI with shift buttons located in a near identical place to the positions you'd assume shifting using a mechanical Shimano STI. Programmable function of top button remote switch for third party cycle computers.
Shimano Ultegra R8050 Di2 Deralleurs
At the rear is the RD-R8050 Ultegra Di2 11-speed rear derailleur E-tube. Low profile Shadow design construction reduces risk of damage in a crash, programmed automatic motion at the touch of a switch makes this derailleur quick, smooth and effortless to shift. Removal of traditional mechanical cables in favour of electrical wires, eliminating poor shifting. At the front is the FD-R8050 Ultegra Di2 11-speed front derailleur E-tube. Featuring full and semi synchronized shifting programable, Synchro shift compatible meaning a single shifter can control both front and rear shifting which can be fully custom tuned to your riding preferences. Semi synchronized shifting means when a front shift is made the rear mech will automatically correct to the appropriate ratio.
Shimano Ultegra R8000 Chainset
FC-R8000 Ultegra 11-speed double chainset. The HollowTech II 11-speed Ultegra chainset offers an ideal balance of light weight and stiffness, making it the perfect choice for both enthusiast and competitive riders. The outer chainring gives vast improvements in rigidity by virtually removing outer chainring flex and hugely improves shift performance, even under high load. Industry leading HollowTech II cold forged 4 arm hollow cranks have been evolved for maximum rigidity while reducing weight.
Shimano has lightened up their Shimano BB-R60 Ultegra 6800/105 5800 Bottom Bracket. Lighten up with the a BB-R60 Bottom bracket, this BB features a proprietary seal system which reduces friction by 50% letting you spin faster and more consistently.
Shimano Ultegra R8000 Cassette
CS-R8000 Ultegra 11-speed cassette. Lightweight 11-speed HG-EV cassette with rigid alloy sprocket carrier for reduced weight and better shifting performance, even under the most demanding gear changes. Hyperglide EV sprockets have been designed to reduce weight with improve teeth shaping providing accurate shifting and reduced wear.
Shimano Ultegra R8000 Brake Callipers
BR-R8000 Ultegra brake calliper at the front and at the rear, features Dual-pivot calliper brake with super SLR-EV design for quick linear response, increased rigidity and improved braking power.