Introducing the Shimano Ultegra R8050 Di2 Groupset, the perfect package to get your bike running like a dream, with smooth shifting and top notch durable Ultegra components. Including all the internal routing to complete your bike.
The Shimano Ultegra R8050 Di2 Groupset provides market-leading electronic gear shifting thanks to the Di2 system and trickle-down technology from professional-level Dura-Ace groupsets. This system ensures shifting accuracy, which provides crisp and precise shifts with every push of a button; this truly is the essence of modern, electronic drivetrain efficiency.
With the R8050 Ultegra Di2 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.
At the rear is the RD-R8050 Ultegra Di2 11-speed rear derailleur, 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.
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.
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.
Available in varying crank length and chain ring combinations
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.
• Di2 Shifters: Run full or semi-synchronised
• Crankset: Evolved from Dura-Ace R9100 version – stiffer with more power transfer
• Front Derailleur: Now accommodates wider tyres and offers bigger gear range
• Rear Derailleur: Shadow design placing mech under cassette away from potential crash damage
• Rear Derailleur available in Short (30T Max) or Medium cage (34T Max)
• Brake Calipers: Larger clearance for tyres, direct mount option available
• Wider gear pitch increases clearance between chain and leading teeth. Optimized lightweight crank arm design produces excellent power transfer efficiency
• Junction boxes, Etubes, Battery and Charger included
Hollowtech II Crankset Lengths
Same bolt circle diameter (BCD) for compact and traditional double chainsets means that one crankarm fits all chainring sizes
R8000 Ultegra Cassette Ratios