Unlike Dura-Ace's hidden screw-type adjustment ... Just as with its big brother, the Ultegra chain runs whisper-quiet, meshes perfectly with its matching chainrings and cassette, and can now ...

The crankset’s outer chain ring features Shimano ... By comparison, new Ultegra gives away just over 500g to a Dura-Ace R9100 groupset (3,566g) with equivalent components.

PEZ readers may remember my Colnago V3 project bike with Ultegra R8000: “The shifting is light, crisp, and sure. Dura Ace is supposed to be better, but I’m not ...

With redesigned chainring tooth profiling first introduced for DURA-ACE R9100, the ULTEGRA FC-R8000 Crankset is optimized ... chainring tooth profiling increases clearance between chain and leading ...

The roads early in the race had even more dips and washouts than the ones we rode Friday night, and once the chaos died down, I noted the lack of chain slap, even when I picked the wrong lines.

Because the ultra-low force shifting of Dura-Ace chain and sprocket systems is also a feature of Shimano’s enthusiast-level Ultegra groupset, the lessons learned in the design of the race ...