Shimano RD-R8000 Ultegra 11-Speed Rear Derailleur - Short Cage

Changed everything on an older 105 bike I had to all Ultegra. Well worth the investment. It takes a lot less movement on the shifters to make a gear change, and the change is faster and quieter. Rather than be limited to a 28 tooth low gear, now I can easily go to a 34. There's plenty of hills here where that'll make life easier. I use this particular bike on Zwift and hated the idea of yet another winter of climbing with a 28 tooth gear. (Why is it EVERY route but one on ZWIFT has a bunch of climbing?!) I run 52/36 up front and really didn't want to change that where everything else I have uses that. I tried all the Wolf Tooth stuff to try and get a bigger cassette on, but no luck. It's so easy to put on a long cage derailleur I can't believe I waited this long. It ... MoreChanged everything on an older 105 bike I had to all Ultegra. Well worth the investment. It takes a lot less movement on the shifters to make a gear change, and the change is faster and quieter. Rather than be limited to a 28 tooth low gear, now I can easily go to a 34. There's plenty of hills here where that'll make life easier. I use this particular bike on Zwift and hated the idea of yet another winter of climbing with a 28 tooth gear. (Why is it EVERY route but one on ZWIFT has a bunch of climbing?!) I run 52/36 up front and really didn't want to change that where everything else I have uses that. I tried all the Wolf Tooth stuff to try and get a bigger cassette on, but no luck. It's so easy to put on a long cage derailleur I can't believe I waited this long. It wouldn't surprise me if you could put on an 11/36 1170 for even easier hill climbing. - If you could find one.

I actually purchased this as a spare part. I converted an old TREK Pilot 27 spd triple chain ring bike to a 22 spd double chain ring bike. Stripped the bike down to the frame. Installed all new Ultegra components, including bottom bracket and crank set. I wanted to run an 11/34 cassette on the rear with 34/50 on the front. This long cage derailleur allowed me to use that rear cassette. The build went great. I've ridden the bike 1000 miles so far this summer. Shifts smooth and reliably. I want to keep it working that way so I thought I'd pick up a spare at a good price. This fit the bill.

Great derailleur with two minor issues. Functionally, the RD is excellent. It provides clean and crisp shifting through the cogs. It looks great on the bike tucked under the chainstays with the shadow technology. Now on to the gripes.1. The number one gripe is that the barrel adjuster is absolute garbage. I was turning and turning and it wouldn't move. The adjustment collar is a crappy soft piece of plastic that would slip and slide around the nut. Looked on youtube and I found the solution was to replace the barrel adjuster with the 6800 barrel adjuster (part #: Y5YC98030). The 6800 design has a beefier hard plastic collar that has multiple engagement points with the nut.2. The shift cable exit point goes RIGHT into the rear spokes! This made adjusting the ... MoreGreat derailleur with two minor issues. Functionally, the RD is excellent. It provides clean and crisp shifting through the cogs. It looks great on the bike tucked under the chainstays with the shadow technology. Now on to the gripes.1. The number one gripe is that the barrel adjuster is absolute garbage. I was turning and turning and it wouldn't move. The adjustment collar is a crappy soft piece of plastic that would slip and slide around the nut. Looked on youtube and I found the solution was to replace the barrel adjuster with the 6800 barrel adjuster (part #: Y5YC98030). The 6800 design has a beefier hard plastic collar that has multiple engagement points with the nut.2. The shift cable exit point goes RIGHT into the rear spokes! This made adjusting the derailleur prior to cutting the cable a pain in the butt. I had to awkwardly wrap and tape the cable around the chainstay so that the cable would not get caught in the rear wheel and potentially ripping something out.