Images have been forwarded confidentially to BikeRadar that appear to show a new Dura-Ace groupset. The pictures, which look like 3D renders, were originally posted on the Argon18 website and seem to feature unreleased components on one of the company’s road bikes.
The four-arm crankset looks very similar to the current 9000 series Dura-Ace component but look closely at the front and rear derailleurs and you’ll see obvious differences.
That front derailleur looks a lot smaller than anything we’ve seen before
The front derailleur in particular appears to be significantly smaller than any road Di2 component we’ve seen to date. It appears to have lost the boxy appearance of the first generation Shimano FD9070 Di2 front derailleur and seems smaller than Shimano’s slimmed-down Ultegra Di2 FD-6870 part.
You can read more at BikeRadar.com