JGbike10 Speed MTB 4pc groupset Compatible with Shimano Deore M4100: Right Shift Lever,Long cage Rear Derailleur, 11-42T Cassette or Sunrace 11-46T Cassette, KMC X10 Chain

This is a great package to convert an old hard tail to a 1X10 setup. The derailleur is nice I put it next to an extra M8000 11 speed I have on my workbench and it has most of the same basic technology. Everything you need is included except the front cog (dependent on your crank) and the wolf tooth goatlink 11 which I think is mentioned in other reviews. I had one in hand but used a RISK link I got here on Amazon and it works great. Definitely a good way to get more life out of an older frame for a low budget. I would highly recommend some blue loc tite on the bolt between the derailleur hanger and whatever link you use. It needs to stay in place and not move in order to work by installing it you create a long lever with 2 pivot point.This is not complicated but does require some basic bike know how. Good project for first timers who are not in a hurry.

Components in the group are all quality and I would highly recommend with a few notes, while I would not install for advanced downhill or racing, if you are an intermediate mountain bike rider, gravel or trail rider this is a very good quality and cost effective way to go for a 1x conversion if you currently have a 3x8 or 3x 9. You do however need some garage bike mechanic experience or at least be mechanical and watch some YouTube videos (Park tool recommended) to install any drive train successfully. Additionally the group includes the Deore 6000 SGS rear derailleur, if you look this up on Shimano's website it states it only supports up to 36T cogs and that is accurate, there is a drop extender included but that is not the intended use with this derailleur, you must purchase and CORRECTLY install the Wolf Tooth Goatlink 11 (not the Goatlink 10), this product is specificity designed to extend any Shimano SGS derailleur geometry to support up to a 46T cog and very importantly it allows the correct adjustment of the "B" screw with no stress. With this kit and the Goatlink 11 (and a narrow-wide chain ring) I was successful in converting a 3x9 Trek Dualsport to a very dependable, quieter and lighter gravel/trail bike.

I like that they packaged everything I needed to upgrade my cassette from 8 speed to 10 speed, and I like that the price was cheaper than I could have bought everything for separately. I have some experience working on bikes and the right tools to replace a cassette, so installation went smoothly. It shifts well and the gear range is much improved, now. I've ordered JGBike's narrow-wide chainring for the front, and I'm going to try going without a chain guide in the near future.

Upgraded 2006 KHS XC204. I converted 3x9 to fake 1x10. I took off my front shifter and locked my front derailleur(which is bent and broken) in place. Bought the goat link 10, guessed at the setup from one other reviewers picture. I mounted the shifter and derailleur first and shifted through the gears to get tuned in close before I put the chain on. I did a slight pretension on derailleur as I tighten the shifter cable. If not first shift doesn’t move at all. After chain install, only a few tweaks, and it was set. I probably have some slight playing with b screw and a few more links to come out, but everything seems to work great.Very quiet, clutch mech is awesome. Eventually I will buy the narrow wide up front, but mainly just wanted to ride a little more trouble free.

I converted an older 3X8 Cannondale mtb to an e-bike, and in the process had to also convert to a 1X drivetrain. I was worried that with a 1X8 I didn't have enough gearing to still go riding in the hills, and safely get myself home if power were to fail out in the hills.This cluster combined with a proper 11 speed derailleur is a terrific upgrade! I am very comfortable with a 46/36 combo to get me out of trouble, and the two extra rings give me most all the ratios I had in the 3X8. If you have en existing mtb you really like, and your only complaint is that you wish it had just one derraileur to worry about, this cassette will breathe new life into your trusty ride. I think it is TOTALLY worth the investment!Jose

First I tried this with my XTR GS Derailleur with the 22mm link and had shifting issues in the smallest cogs, (8 thru10). I would have to shift from 8 to 10 then back to 9 if that's where I wanted to be. Contacted Sunrace and they recommended to use the Shimano Deore RD M6000 GS derailleur which is designed for the wider ratio cassettes. Replaced the XTR GS with their recommendation and no more issues at all. Perfect shifting in all cogs and without the 22mm link. I'm running a Race Face 36T Cinch chain ring so this cassette gives me good climbing and a good top end speed when chasing down the young whipper snappers I ride with, heh. Sweet!