JGbike 11S MTB groupset Compatible with Shimano Deore M5100 11 Speed shifters & Rear Derailleur, KMC X11 Chain,Sunrace 11-51T CS-M5100 Cassette

Great parts bundle, easy to do a build!

I upgraded my 7 speed cassette to get lower gears for trail rides and after some research came across this package. Only thing you need is to replace the hub and resize the chain but everything else is taken care of. Shifting is crisp, smooth and now my bike keeps up with everyone else. Price for the kit is reasonable and quality is great - I highly recommend

Item is as described and works well, performs well, shifts well, not a bad buy.

I used this set to replace my factory Deore 10-speed (11-46) groupset because I wanted to change my chainring from a 30t to a 32t to gain a higher top-end. The 51t cog allowed me to still maintain my climbing ratio while gaining the top-end speed. Everything was in perfect condition and installed with no issues. The only thing I did not like was the cable housing was not included. There were just two small sections included, presumably for open cable systems. My system is fully closed and runs internally through the frame. The change in derailleur required about 2 extra inches of housing resulting in a complete housing replacement. Not a tremendous issue, but definitely an unplanned and inconvenient one.

TLDR; The derailleur has a clutch, but it’s turned off by default. The lever is tough to spot once it’s turned “on.” The clutch eliminates chain bounce. Make sure to get a narrow-wide chainring up front; you won’t regret it. No chain guide and still no chain drops! This kit actually worked perfectly on my kid’s circa 2005 Specialized Enduro 26er. I was worried the derailleur would extend too low towards the rim, but it tucks in quite neatly. I tried using the original 32t middle chainring from the 3X, but it wanted to come off at both ends of the range. I got a chain guide to work well enough, but the real breakthrough was changing to a Narrow-Wide chainring, make especially for 1x setups. They are magic for this application; no more chain drops, no graininess in either direction, and the chain guide is no longer needed. I couldn’t be any happier with this kit. A massive upgrade and a tremendous value.

Just bought my 3rd 1x11 setup from jgbike and installing tonight. Everything was packaged great no damages as usual. They got it to me a day earlier than I expected so now I’m gonna be able to take my full squish to the trails tomorrow. These guys are a great company. I get just about all my parts from the and they are always in great working order. They hold up great when put to the test on the trails as well.

Derailleur was bent and was unable to use

No doubt, this IS 2020 Shimano Deore 11 Speed Components. Deore ranks 8/11 in their lineup, so it's not cheap stuff. I have a 2012 Gravity FS bike with a 3 x 9 setup. This kit fit perfect and improved my shifting and performance on even the first ride. Installed in about an hour. Oh & you'll need the Shimano cassette removal tool and some kind of chain whip.

Nothing to dislike been waiting for some time to bye this item its a replacement for the set i bought to go on this bike i think this set is much better thanks guys 👌