Sun Race CSMX8 11-46T cassette long-term review

I could not compare & test the durability & longevity of the cassettes in a accurate & scientific way, but here is my experience with it so far. I have been swapping between 3 wheel sets, and various time of use, only way to accurately test it is a machine with exact same abuse.

The cogs eventually bent/twisted, but it took much longer than on the XT casette,

the Sun Race Cassette is more flexible, but also more resistant to ”permanent” bends.

I have 3 wheel sets I rotate, when one needs a service or something is wrong I can just swap, so I haven’t used the cassettes 100% equally amount of time.

I am not sure if the flex in the FuelEx’s that did this or if its the cassette’s fault.
it was more resistant to blends but is more flexible than XT cassette.

I have of course regurally chainged the chain when it got to 0.40mm stretch. and lube the chain well, an done every htign correctly.

Chaindrop issue:

The Last ride on the last cassette:

I worn out 2 of the tree cassettes, and June 2018 I worn out the last one.

The cassette was so messed up, that the chain dropped to the smallest cog.

I knew the cassette was going to wear out soon, and it did,the chain dropped to the smallest cog. The hanger was bent too.
the smaller cogs are have bent teeth & twisted teeth, some of the cogs are bent too.
there is no way I can twist the teeth back to be straight with any tool I got. if it was just the cogs a screw driver would probably do the trick, it did before on several XT cassettes.
I had to put on Xt cassette I had.
The Sun Race cassette was more resistant to the abuse The Fuel EX frame set put s the drive train trough, but eventually it got abused too much.

https://c2.staticflickr.com/2/1739/42741146902_be7d990695_o.jpg

Back on the Sun Race cassette

The backpedalling issue was gone when I went from 34t to 32t oval chainring.

I could pedal backwards without the chain dropping or skipping or any high noises.

The range seems to be what I was looking for.

Verdict

With 11-46T x 34T oval I found I needed a smaller chainring, so I got 33t. I could have gone for bigger cassette, but I did not need the high gear the 34t offered. And I will stick with sun race 11-46, as Shimano xt m8000 does not offer the a good transition to the largest cog.

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Shimano XT M8000 11-46T casette long-term review

I have been through several cassettes and put it through its paces.

Due to the design of the cogs, the transition from each cog is excellent. The chain stays well in place with unrealistic fast backpedalling, where the sun race cassettes would drop the chain, my bike has hope pro 4hub, Absolute Black 34t.oval chainring, this but the chain at an optimal angle for the biggest cog, so this clearly shows the sun race cassette performs worse with backpedalling. As mentioned in many other reviews, the jump to the 46t cog is too big, it messes up your cadence, but I got used to it.

https://youtu.be/HY9GRoXIY1A
The XT cassette has quite stiff cogs when the chainstay wore out on my 2014 fuel ex the extra side to side movement combined with bearing misalignment caused the cogs to bend, but this will not be an issue on a bike that does not have an extreme side to side movement or bearing misalignment issues. So, in conclusion, the cassette performed well.

http://bike.shimano.com/content/sac-bike/en/home/mtb1/drivetrain/cassettes/cs-m8000.html