JGbike Compatible 10 speed MTB 4pc groupset for Shimano Deore M4100: Right Shift Lever,Long cage Rear Derailleur, 11-42T Cassette or Sunrace 11-46T Cassette, KMC X10 Chain

PERFETTO CI VUOLE UN PO' DI TEMPO PER MONTARLO PERO' NESSUN PROBLEMA.

Firstly, all the items in the box are genuine Shimano. No questions. After having a 12 speed chain fail (250 miles !) I lost faith in the chains so decided to go 10 speed. The shifting is as good if not better than the 12 speed setup. The cassette is a good spread of ratios. The only slight downside is a bigger gap in ratios between first and second but you soon get used to it so its not a deal breaker. The shifter came with a gear indicator window which I was initially disappointed with but its underneath the bar unlike the older shifters which were on top so really not that noticeable and for the money I soon got over it. I wont be going back to 12 speed.

I am very pleased with this group set. It is very very good Quality for the money. The Deore M6000 Derailler is a solid piece and a proven derailleur in the MTB world. The Cassette from Sunrace is very good Quality too and the KMC chain does the job perfectly. Installation was easy for my bike as well. My Bike is a 2013 GT Timberline 1.0. I have Bontrager AT-850 29 inch Disc wheels that accomodate up too a 10 speed cassette. This group set worked very well for me. I chose the 42T seeing people had trouble with the 46T. I had no trouble what so ever with the 42T, the derailleur got the chain right up to 10 no problem. It took a little normal ajustments to get it too shift smoother but nothing out of the ordinary. For anyone looking at this set, I firmly recommend getting the 42T and most importantly do your research on what is compatible to your bike. Overall, very Affordable, very smooth and very well made. Happy customer.

Fantastic drivetrain that comes with all the items needed. I did also purchase a derailleur hanger extender to ensure smooth changes into the largest cog. Works perfectly.

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.