Can we wash our bikes like pros?

[OakLeaf]

It's not a crush washer. It's just a wavy spring steel lock washer. It doesn't stay deformed once tightened and removed.

You don't need to replace it unless you lose it.

I swap cassettes frequently with not a problem. So do the pros race to race.

There's a crush washer in my 105 cassette. Shimano's exploded parts fiche doesn't even show it, but it's there. As I said, it's extremely thin, maybe half again the weight of heavy-duty aluminum foil. It goes under the "wavy" lock ring. The old one was definitely permanently deformed. I guess if it's not in the parts fiche, maybe it isn't necessary??

Don't know about any other brands or models, but I guess I'd be surprised if all Shimano cassettes didn't have them.


ETA: off topic, but hmmmmmm - Shimano's site says not to use the Ultegra cassette with a triple crank. Didn't know that. If Ultegra had been available in 11-25 as I wanted, I would've gone that way. Lucky.