You lost me at "steel rotor bolts," that's when I knew it wasn't serious. I think it's a cool build. I would install a chainguide for insurance. Foam Grip Failure isn't likely going to end a run, but wrapping your chain around that pretty Ohlins shock sure will. And speaking from experience, carbon saddle rails are not long for the world on a mountainbike, that's a weird spec. But she's got it where it counts: Good tires, good suspension, let 'er rip!