SunRace Csmx80 1150t 11 Speed Cassette

It fit, it works. I ride about 20-25 miles per week on rocky trails. I've been riding with this cassette for over 6 months and it is still performing excellently.

Replaced my shimano 11 47 cassette . Which just didnt have the climbing range . The sunrace 11 50 has 32,36,42,50 on the low end much better all around . The weight differential is minimal 60 grams or so . Construction of the sunrace is far superior to the shimano no plastic spacers between cogs . Sunrace has a joined segment creating a better energy transfer . The drive train feels more direct for the a fraction of the $ you get eagle bearing on your 11 speed. SRAM only has the 12 speed option.

Worked perfectly on my old 2005 Santa Cruz Heckler with Chris Kings hubs. I switched to a 1x11 drivetrain from a 2x9. I’m currently using a SRAM Horizon 11 speed shifter and rear derailleur.

- Great value for upgrade 11sp from 10sp for me- Feel little coast force when using 30T x 50T in 29er uphill, not too slow

Installed the cassette with the existing 11 speed KMC chain and had trouble upshifting from second to third largest cog. Read about some who installed an Eagle 12 speed chain with good results. Just installed a new Eagle GX 12 speed chain and shifting overall improved and issue shifting from 2nd to 3rd cog is gone. I have an 11 speed Shimano drivetrain and the Eagle GX chain works flawlessly. Some may claim online that 11 speed Shimano gear may not be compatible a SRAM 12 speed chain but it's not true from my personal experience.

I expect this 11-50 tooth cassette to conquer some hills soon, but I just installed it last night and still have a few more components to add. I am totally impressed with the quality. There is some confusion around this Sunrace series: do some research and make sure you understand the differences between the MX80 and the MX8. Some gears are steel, some aluminum, intermixed. I am sure all the variations are fine but make sure you get what you want.

Good upgrade if you need wider range and don’t want to upgrade to 12 speed. In my case it works fine with XT derailleur.

Giant Trance 2 with SLX Components will not shift. I contacted SunRace and they specifically told me it would work with my derailleur however after taking it to the bike shop to have it installed, it would not shift. In the lowest sprocket gear it would get stuck and not shift up. In the larger sprockets it would not make the shift to the largest two gears. Adjusted the B screw many times to no avail. Ended up buying a Shimano 46 tooth and it works perfectly.