Review on Wheels Manufacturing Wave Washer Spacers - 30mm Bike Pack Accessories (Pack of 10) by Max Rosengren

I replaced a weak washer with one of these and fixed my problem installing BB30 cranks on my 2020 SuperSix evo. This washer provides just enough resistance to prevent side-to-side movement of the crankshaft, but not so much that it binds your cranks. Wheels Manufacturing makes good products. My only complaint was that I had to buy a pack of 10 when I only needed one. but it was worth it because the product works exactly as it should.