Shimano Ultegra R8000 Medium Box Rear Derailleur

Product Information

Few are likely to damage a derailleur by catching or bashing it off something while riding on the road, but given that the new Ultegra groupset will inevitably see time used for cyclocross and gravel, this is a welcome move. You can use this kit with all mechanical 11-speed Shimano shifters. So whether you have Ultegra, 105 or Dura-Ace, this derailleur will work perfectly with the shifters. Shifting speed feels much the same as the previous generation, but this was hardly laggy, so no complaints here. Ultegra R8000 is best seen as an overall refresh of the venerable Ultegra 6800 groupset rather than a drastically new design — lots of small refinements make the groupset an absolute joy to use with braking and shifting that is largely indistinguishable in performance from Dura-Ace 9100. Shimano’s new Ultegra R8000 cassette supposedly offers “HIGH-PERFORMANCE GEAR COMBINATIONS” and is virtually indistinguishable from the previous generation. It shifts just fine and weighs the same as the old one.

Along the way I've also ridden every Shimano groupset from the 8-speed Claris through to the top-end Dura-Ace Di2, which has helped highlight just how good this groupset is. Shimano has just released its new R7000 105 groupset, which is pretty much the only groupset any of us will ever need. I'd say that Ultegra is just a tiny little bit more refined throughout, but whether it is worth the extra expense is for you to decide. Conclusion The new Ultegra-level chain, which also works with the mountain bike groupset Deore XT, uses Shimano's SIL-TEC ultra-low friction surface treatment, a plating process that Shimano claims offers smoother running and longer wear in all conditions. series braking was considered benchmark and I think Ultegra R8000 exceeds it in terms of power and modulation. Shifting is also on par, and while R8000 weighs a touch more, you can easily lose that weight elsewhere on the bike. Shimano also had its pro team liaisons at the Almanzo event. They were somewhat mum on the Ultegra RX’s future in professional road and cyclocross racing. Word about the Ultegra RX first came out when the Trek-Segafredo team test rode the clutch-based derailleur before the Tour of Flanders spring classic. The team did not race with the Ultegra RX in Flanders, but they did at Paris-Roubaix. As one of the reps pointed out, the impact of the new derailleur did not show in the results.There are multiple cassette ratios to choose from for different terrains. For example, the cassettes ending at 25T are used more on the flat and slightly sloping roads. The 28T is used for hilly roads and the 30T, 32T and 34T for real mountain rides. The 14/28 is mainly used for cyclists who want the smallest possible transitions, for the ideal cadence. All this, of course, taking into consideration whether you ride compact, semi-compact or double. Some readers will likely note Shimano already has clutch mountain bike derailleurs that can be paired with electronic shifting for 1x systems. With the new Ultegra RX derailleur, Shimano expands compatibility to mechanical road shifting and suggests there is a benefit in having a clutch rear derailleur with double front chain rings when riding gravel.

The Ultegra R8000 rear derailleur has Shimano's Shadow-Link design. With this design, which you also see on the Dura-Ace R9100, the derailleur is further recessed below the cassette, which has two key advantages:

ADDED TO YOUR WISHLIST

I appreciated the wide range of the 11-32t cassette the long-cage GS derailleur supports, especially in the last 20 miles of the race. Our Allied Alfa All-Road test bikes had a compact 50/34t Dura-Ace crankset paired with an 11-32t rear cassette, which provided a very spinny 34/32 climbing gear ratio compared to the 36/28 of my personal cyclogravel bike. You will probably also need to install another derailleur cable to get the derailleur working. You can find these cables here. We changed the chain, indexed the gears, tried to play with the b-screw on the rear derailleur, that did not solve the problem. Today I received a new bike for my girlfriend, equipped with exactly the same groupset, I see the same problem, the noise is even louder, as well as the vibrations (ask me if you want a video for this bike too).