Can you mix Ultegra and Dura Ace
Thus, an Ultegra (6800/8000) 11-speed chain can be used with a Dura-Ace (9000/9100) 11-speed cassette. Similarly, there is no need to match the level of the chain and cassette to the rest of the groupset, so a 105 (5800) 11-speed cassette can be used with a Dura-Ace (9000/9100) 11-speed groupset.28 Dec 2017
Does GRX Di2 work with Ultegra
Compatibility of GRX with ULTEGRA for road bikes
Shimano's GRX for gravel bikes and ULTEGRA for road bikes are compatible with ULTEGRA 6700 and above, and ULTEGRA is the only component that is compatible with all GRX models, including GRX electric shifting models, because ULTEGRA has Di2 models.16 Mar 2021
Are all Di2 components compatible
In general, every electronic Di2 component is compatible between the Ultegra 6770, 6870, and Dura-Ace 9070 systems (see exceptions below.) … Any of the Ultegra/Dura-Ace controllers (A Junctions) can be used with either system. All components use the same cables and connectors.
What cassettes are compatible with GRX
GRX utilises 2 types of cassette, the double system will use a narrower spread road range cassette in ratios of 11/32 or 11/34. The 1x system will be equipped with an MTB style cassette with a wider ratio of 11-42 or thereabouts.4 May 2020
What Di2 wires do I need
You'll need at least three (Shifter -> Junction A -> Battery / Rear derailleur) EW-SD50 electric wires to build a Di2 system. Most setups will use a more sensible set of five or six wires. Apart from the EW-SD50 there's also the EW-JC130 Y-connector and EW-JC200 inline-port to help you connect all the components.9 Oct 2019
Can you cross chain on ultegra
Yes, you then add a rear derailleur to the mix. However, Di2 will ask you to shift into that arrangement for setting up, so it's not going to break anything! Just don't run it in big-big for any length of time. Now, again sticking with Di2, by default it prevents cross-chaining.
Can you manually shift Di2
You can change between the shift modes by double-pressing the button on your junction box. When you do this the bike cycles through three modes: Manual mode – Indicated by solid red/green LEDs. This is traditional, full-manual shifting.30 Mar 2020
Can you mix and match Shimano
You should have no problem mixing and matching these components. As long as everything is either Shimano 9speed or Shimano 10speed, you're fine.17 Sept 2009
Is Dura Ace chain better than Ultegra
Greater use of the Sil-Tec coating does make the Dura-Ace chain more durable, because it covers the high-load contact surfaces, where it does not on the Ultegra chain. Link shaping is identical so there's no diference in shift performance. The weight difference from the hollow pins is negligible.6 Sept 2020
Will an XT cassette work with GRX
I was gonna pickup another 11-34T cassette but, after reading this article, I bought a Shimano XT CS-M8000 11-40T cassette instead. … I can confirm that, yes, this indeed does work.7 Nov 2019