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ShimanoUltegra Di2 RD-R8050 Rear Derailleur
Item # SHI00G5
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I am looking for the Shimano Ultegra Di2 RD-R8050 Rear Deraileur GS Cage. Could you confirm that the long cage version is in fact the RD-R8050-GS? the picture shown for long cage version doesn’t match the one shown on Shimano’s website. See https://bike.shimano.com/en-EU/product/component/ultegra-r8050-di2/RD-R8050-GS.html
Thanks so much for you help!
what's the different between SHIMANO Ultegra RD-RX805 vs. RD-R8050 Rear Derailleur? is it just a clutch?
Welcome to the future
DI2 is incredible. I have ridden every kind of component in mechanical form and now switching to electronic shifting I am blown away. The shifting is crisp, clean, and reliable. My favorite part is once set up, maintenance is next to none.
will this model fit my ten speed Di2
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Sadly, no. This is an 11 speed rear derailleur.
will this model fit my di2 ten speed I have a short cage
Robot Bike Love
- Familiarity: I've put it through the wringer
There are so many things I can say about Di2 but I will keep it simple, it just works flawlessly. I can go most of the season on a single charge and every shift is perfect, even when my technique is sloppy. The long cage version of this derailleur will go up to an 11-34 cassette which is great especially if you are just starting out in hilly terrain or if you are a veteran that likes to spin a smooth 90+ cadence on steeper grades.
My derailleur cage is bent on my di2 9070 rear derailleur after an accident. Really don't relish the idea of dishing out $540 for the current DA rear derailleur. Would this one work with my setup. I have a 11-28 cassette.
An update to my prior question: Forrest, I forgot to mention I have an all Dura-ace di2 9070 setup. Maybe you got that when I mentioned 9070, but I've heard or read that some Di2 stuff between dura-ace and Ultegra don't like each other. Is this true or not? Or should I be okay as you mentioned before?
Yeah it would plug in and work fantastically.
The Ultegra RD-8050 will work with the Dura Ace DI2 11 speed shifters.
Can not remove my rear wheel!
- Familiarity: I've used it once or twice and have initial impressions
I purchased the long cage version and and a 11-34 cassette. I put it on my bike today. I am going on a trip to the mountains soon and have a Cannondale super six with disc brakes. I got the derailleur on with only minor issues but I can not remove my rear wheel without taking off the derailleur. I hope I don't get a flat tire. Be careful. This doesn't play nice with all bikes.
I almost bought DA
- Familiarity: I've used it several times
I just built up a 2015 Sworks Tarmac Disc and was trying to decide. Do I go Dura Ace or Ultegra? Previously there may have been a big difference, besides price. This version though is so close to Dura Ace that the big difference I saw was price. I went Ultegra and it is great. Mount and setup are easy and the weight and function are very similar. I am happy with my choice.
There is still a place for Dura Ace because it is the uber groupset, but Ultegra will work fine for me. And it is cheaper to replace when i lay it over in a crit race.
Let me know if you have compatibility or function questions. firstname.lastname@example.org
Is this derailleur compatible with the 6870 Di2 group? (Replace RD6870 with RD8050)
This rear derailleur is absolutely compatible with the 6870 group.
Let me know if you have any questions and I'd be happy to get one on order for you if you'd like!
My local bike repair man called Shimano and said that all you need to buy is the RD8050 rear derailer and the 11-34 cassette and that it will work on the other 6870 di2 parts.
Everything on my bike is 6070 except the 8050 rear derailleur. Works perfectly. Just make sure Etube knows what rings and cassette you are running.