This is the toughest cover we have ever offered. It's thick and won't break and will let all the clutch weights fit. It's a clear anodize over a sandblasted aluminum finish, so it looks good and cleans up easily.  It also lets heat escape easily.  It's needed on 2017-22 450 SXF/XCF/FC/FX  models, for the 11 and 13 oz clutch weight to fit.