Shimano’s latest 11-speed Dura-Ace 9100 mechanical / 9150 Di2 rear derailleurs and their Ultegra cousins, the 8000 mechanical and 8050 Di2 – in the regular / short cage variant, are listed by Shimano as having a maximum rear cog capacity of 30 teeth. The mid-cage of the latest Ultegra derailleur, mechanical or Di2, is designed to work nicely with the company’s newest cassette addition, the 11-34 ratio.
But like a lot of manufacturers, Shimano is playing it safe. JOM of the Gravel Cyclist crew figured the short / regular cage versions of these derailleurs are capable of much more, so he produced a video about it.
Can you shift to a 36 tooth cog using Shimano’s latest lineup of 11-speed Dura-Ace / Ultegra short / regular cage rear derailleurs?
As an FYI, the Ultegra versions of these derailleurs will be all over gravel bikes from 2018 onwards.
Thank you to ROTOR America for supplying the 3d+ crankset and bottom bracket as seen in this video.
Thanks for watching!