Shimano Ultegra R8000 Medium Box Rear Derailleur

Product Information

This Shimano Ultegra R8000 rear derailleur is designed to provide you with optimum road shifting performance. It's light, strong and has the best shifting characteristics. Upgrading to one of these derailleurs will make a world of difference!

Since I started testing the new groupset, many have also asked me whether it is as good as Dura-Ace 9000 and I’d have to say, yes, pretty much.Shifting speed feels much the same as the previous generation, but this was hardly laggy, so no complaints here. Shimano has made no specific claims as to how much stiffer the new R8000 brakes are over the outgoing 6800-series model, but the latest Dura-Ace brakes are reported to be 43 percent stiffer than the previous generation, so we can likely expect similar claims here.

Potenza is a very good groupset, but when I tested it, it was pitched against Ultegra 6800 and this new R8000 group has moved things up a notch. Shadow: Shadow design features a super low profile design and optimised slant angle for super light shifting action. The lever is carbon fibre, which is one difference over 105, and both it and the paddle behind offer very light yet precise shifts, thanks to the reduction in swing of both to change gear. Before you can install the new derailleur, you'll need to remove your chain. You can read about how to do that in this blog. You'll need a chain breaker, which you can find here. Some multi-tools contain a chain breaker. Make sure that you select a chain breaker for the right speed chain though - the size of the pins is different according to the speed of the chain. The second advantage is that the design makes it possible to mount bigger cassettes, with both the short and long cage versions. With the long cage derailleur this means that you can mount an 11-34, which will be useful on climbs. From a technical point of view it creates a bigger chainring, which allows you maintain the normal crank ratios but with a bigger cassette.

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Working with your 11-speed groupset and composed using a lightweight aluminium pulley cage that goes a good way to reducing weight without sacrificing your shifting power or performance, this rear derailleur boasts an incredibly broad gear ratio. Ranging from 11-28T and going as far as 11-34T you can rest assured that you have the ability to take on the impending climb and pursue it to its conclusion. You will probably also need to install another derailleur cable to get the derailleur working. You can find these cables here. 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.

When I press the cage gently with my finger to bring it forward, the noise disappears and the chain no longer seems to "vibrate" above the top pulley (you can watch the difference on the video, looking the chain just above the top pulley). Price Matches may only be honored on identical items. The product must be the same make and model (i.e., the same size, color, year, etc.). 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. The hydraulic R8020 versions are Ultegra-specific, whereas in the past the levers were 'Ultegra level', and they have become so small considering the fluid reservoir that there is barely a difference between them and the rim brake options. Chainset Several members of the team rode the new Shadow RX derailleur at the 2017 Almanzo 100, but rain and temperatures that hovered around 40 degrees forced many of the team to skip the race or withdraw early. All told, only about 100 starters finished the event. Not exactly the best test conditions.Both models come with a GS long cage that fits cassettes between 11-28t and 11-34t. Lawrence explained the company added room for the 34t cog after test rides on the steep gravel roads in Colorado. That’s pretty low for road 2x gearing, but a few steps away from the 11-42t many 1x users are used to (in case you’re thinking about a RX805 single chain ring setup). 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. The materials which this derailleur is made from are lightweight and durable. Light metals are used which makes the derailleur very strong. These metals are optimally constructed and finished so that you don't take a gram to many up the mountain with you.

I love using R8000, it's pretty much my favourite groupset – and I've ridden virtually every setup going this year, at least from Shimano and SRAM. It's no lighter than the outgoing edition, but overall it works just a little bit better – more an exercise in refinement than a major overhaul, but very welcome nonetheless. Verdict 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. ConclusionA number of European cyclocrossers, including Mathieu van der Poel, Sanne Cant and the Telenet Fidea team, race on Shimano components. Although SRAM’s clutch-based derailleurs have become a favorite for many U.S. cyclocrossers, the Shimano reps said none of the athletes have committed to using the new clutch-based system this fall. Cycle Centre Congleton Limited 2021. Cyclestore is a trading name of Cycle Centre Congleton Limited. All Rights Reserved Company No. 05107467 | VAT No: 593 733 507