Review on JGbike 10-Speed MTB Groupset for Shimano Deore M4100: Right Shift Lever, Long Cage Rear Derailleur, 11-42T or Sunrace 11-46T Cassette, KMC X10 Chain by Terrance Duncan

Bought this cassette for a one off rebuild on my bike. Installed with no problems. I love that it comes with an RD mount extension! I put it on the link and had to make a very small change to the rd. Shifts are smooth and quiet. The cage position at 42 t was spot on. Overall, this is a great solution, but not quite perfect. The jockey wheel is farther from the cogs than I would like, but only because it rubs against the chainstay when inserted into the chain on the 11t version. Maybe it's my frame design, but it's worth noting. I've only ridden about 25 miles so far but it works great! Of course it looks good. To update. The derailleur hanger is cheap aluminum, and the flimsy bolt broke along the way and got stuck in my wheel. JGBIKE, please don't offer such a cheap part that will cause hundreds of dollars in damage if broken! Adapter failure and cheap sheared bolt. Cost me a new steering wheel, new derailleur, chain, suspension, etc. $$$ a lot for a cheap part!