NX Cassette Bent Teeth

[KennyB]

Changing the chain I noticed a bent tooth on the large, 42 tooth sprocket of my NX cassette, and another and another. I counted the gaps and every 7th tooth is bent and they all look the same. An almighty coincidence or design, part of the truth profiling? I favour the latter.

 

[Haedesz]

There are alot of patterns and designs worked into the cassette for chain retention, easy shifting etc.
Bent teeth on larger cogs is one of them! The bent teeth is then followed by a groove on the cog which makes it easer to slip off to a lower gear when shifting.