ZTTO 11-46 cassette 11 speed

[Txapa80]

Hi all,
I recently purchased a new gravel frameset and wheelset from lightcarbon.
The groupset that I will use is Sensah SRX that my gf was using on her road bike.
The problem I found is the ZTTO 11 speed cassette don't get properly tight on the freehub. The 11 speed cassettes doesn't need any shim that's why I found it odd.
After trying an 11 speed cassette from Shimano it gets properly tight.
I contacted ZTTO and they looked quite helpful till I did all the test that they asked me to do and we couldn't find the solution to the problem and then they just refused to refund me.
Has anyone else had the same problem with one cassette of that brand?
At least it was quite cheap and I don't feel so bad for the waste of money but sometimes it's better go for the quality stuff.

[adriaanm]

You do need a spacer for an 11speed mtb cassette on a road free hub body. For example , https://www.bike24.com/p259996.html

[Txapa80]

@adriaanm thanks for your help I will try to fit an old spacer from an old cassette. I wasn't expecting to need an spacer for an 11 speed cassette as it is Ok when I fitted the Shimano 11 speed cassette on the same freehub.

I thought only the 10 speed cassette needed an spacer when you fit it in a 11 speed freehub.

[acedeuce802]

You are correct in the road world, 11 speed cassettes got wider and thus a longer freehub and 10 speed cassettes would need a spacer.  In the MTB world, 11 and 12 speed HG cassettes have the large cogs pinned together and the large cogs kind of sit over the inside end of the freehub, so it packs 11 or 12 cogs in the same 8/9/10 speed freehub.  Now that road groupsets are coming with wider range cassettes it gets a bit foggy, because the 11-28 to 11-32 cassettes are road, and 11-42+ are MTB (even if they come in a road groupset), not sure about mid range like an 11-36. 

[theirishrider]

I got the 34t ZTTO one with the Alu large cogs. I felt like it was 'loose' but i did the lockring tighter and it got rid of the wobble. Maybe try another thin washer that the lockrings have on them?

[Txapa80]

Thank you guys, I will try with a spacer from a old cassette to check if the cassette gets tight.
The lockring of my cassette didn't come with the thin washer that comes with Shimano and SRAM cassettes, I will use the lockring ring from my old Shimano cassette too and I will let you know