Flexy cassettes

Just put a sram 1130 cassette on with a 36 largest sprocket and I can actually pull the large sprockets side to side there is so much flex in them.
Is this due to it being a lower end sram one? Or is it just a consequence of the large sprocket?
I’m pretty sure my shimano 32 has zero flex in it.

And does it matter? I guess there is going to be little force in that direction.

Is it Rival 1 11 speed, 11-36? I believe I have the same cassette, i have not had any issues with it, didn’t notice any flex when I installed it.

I think it’s the same one. Although cassettes are 1130, 1150 etc. Not rival force etc.
Did you use a spacer on 11 speed hub?

No, I did not use a spacer, I installed it on a Ultegra 6800 rear wheel.

Just put a sram 1130 cassette on with a 36 largest sprocket and I can actually pull the large sprockets side to side there is so much flex in them.
Is this due to it being a lower end sram one? Or is it just a consequence of the large sprocket?
I’m pretty sure my shimano 32 has zero flex in it.

And does it matter? I guess** there is going to be little force in that direction**.

Not a bike expert, but there is probably little to no strain on the cassette from the side when riding. Now, if this was a wheel, I’d be more worried.

That was my thinking so I’m not too fussed.
Just wondered if it was installed wrong.